Proto-Celtic, or Common Celtic, is the reconstructed ancestral proto-language of all known Celtic languages, and a descendant of Proto-Indo-European. It is not attested in writing but has been partly reconstructed through the comparative method. Proto-Celtic is generally thought to have been spoken between 1300 and 800 BC, after which it began to split into different languages. Proto-Celtic is often associated with the Urnfield culture and particularly with the Hallstatt culture. Celtic languages share common features with Italic languages that are not found in other branches of Indo-European, suggesting the possibility of an earlier Italo-Celtic linguistic unity.
Proto-Celtic is currently being reconstructed through the comparative method by relying on later Celtic languages. Though Continental Celtic presents much substantiation for Proto-Celtic phonology, and some for its morphology, recorded material is too scanty to allow a secure reconstruction of syntax, though some complete sentences are recorded in the Continental Gaulish and Celtiberian. So, the main sources for reconstruction come from Insular Celtic languages with the oldest literature found in Old Irish and Middle Welsh, dating back to authors flourishing in the 6th century AD.
Proto-Celtic is usually dated to the Late Bronze Age, ca. 1200âÂÂ900 BC. The fact that it is possible to reconstruct a Proto-Celtic word for 'iron' (traditionally reconstructed as ) has long been taken as an indication that the divergence into individual Celtic languages did not start until the Iron Age (8th century BC to 1st century BC); otherwise, descendant languages might have developed their own, unrelated words for the metal. However, Schumacher and Schrijver suggest a date for Proto-Celtic as early as the 13th century BC, the time of the Canegrate culture, in northwest Italy, and the Urnfield culture in Central Europe, implying that the divergence may have already started in the Bronze Age.
The phonological changes from Proto-Indo-European (PIE) to Proto-Celtic (PC) may be summarized as follows. The changes are roughly in chronological order, with changes that operate on the outcome of earlier ones appearing later in the list.
These changes are shared by several other Indo-European branches.
The following sound changes are shared with the Italic languages in particular, and are cited in support of the Italo-Celtic hypothesis.
One change shows non-exact parallels in Italic: vocalization of syllabic resonants next to laryngeals depending on the environment. Similar developments appear in Italic, but for the syllabic nasals *mé, *né, the result is Proto-Italic *ÃÂm, *ÃÂn (> Latin em ~ im, en ~ in).
The following consonants have been reconstructed for Proto-Celtic (PC):
Eska has recently proposed that PC stops allophonically manifest similarly to those in English. Voiceless stop phonemes were aspirated word-initially except when preceded by , hence aspirate allophones ; unaspirated voiced stops were devoiced to word-initially.
This allophony may be reconstructed to PC from the following evidence:
Proto-Indo-European (PIE) voiced aspirate stops *bð, *dð, *gð/õð, merge with *b, *d, *g/õ in PC. The voiced aspirate labiovelar *g÷ð did not merge with *g÷, though: plain *g÷ became PC *b, while aspirated *g÷ð became *g÷. Thus, PIE 'woman' became Old Irish and Old Welsh , but PIE 'to kill, wound' became Old Irish and Welsh .
PIE *p is lost in PC, apparently going through the stages *ø (possibly a stage *[pð]) and *h (perhaps seen in the name Hercynia if this is of Celtic origin) before being completely lost word-initially and between vowels. Next to consonants, PC *ø underwent different changes: the clusters *øs and *øt became *xs and *xt respectively already in PC. PIE *sp- became Old Irish s (f- when lenited, exactly as for PIE *sw-) and Brythonic f; while argues there was an intermediate stage *sø- (in which *ø remained an independent phoneme until after Proto-Insular Celtic had diverged into Goidelic and Brythonic), finds it more economical to believe that *sp- remained unchanged in PC, that is, the change *p to *ø did not happen when *s preceded. (Similarly, Grimm's law did not apply to *p, t, k after *s in Germanic, and the same exception occurred again in the High German consonant shift.)
In Gaulish and the Brittonic languages, the Proto-Indo-European phoneme becomes a new p sound. Thus, Gaulish petuar[ios], Welsh "four", but Old Irish and Latin . Insofar as this new fills the gap in the phoneme inventory which was left by the disappearance of the equivalent stop in PIE, we may think of this as a chain shift.
The terms P-Celtic and Q-Celtic are useful for grouping Celtic languages based on the way they handle this one phoneme. But a simple division into P- / Q-Celtic may be untenable, as it does not do justice to the evidence of the ancient Continental Celtic languages. The unusual shared innovations among the Insular Celtic languages are often also presented as evidence against a P- vs Q-Celtic division, but they may instead reflect a common substratum influence from the pre-Celtic languages of Britain and Ireland,http://www.sciencemag.org/cgi/content/full/288/5469/1158, or simply continuing contact between the insular languages; in either case they would be irrelevant to the genetic classification of Celtic languages.
Q-Celtic languages may also have in loan words, though in early borrowings from Welsh into Primitive Irish, was used by sound substitution due to a lack of a phoneme at the time:
Gaelic "kiss" was a later borrowing (from the second word of the Latin phrase "kiss of peace") at a stage where p was borrowed directly as p, without substituting c.
The PC vowel system is highly comparable to that reconstructed for PIE by Antoine Meillet. The following monophthongs are reconstructed:
The following diphthongs have also been reconstructed:
The morphological structure of nouns and adjectives demonstrates no arresting alterations from the parent language. Proto-Celtic is believed to have had nouns in three genders, three numbers and five to eight cases. The genders were masculine, feminine and neuter; the numbers were singular, plural and dual. The number of cases is a subject of contention: while Old Irish may have only five, the evidence from Continental Celtic is considered rather unambiguous despite appeals to archaic retentions or morphological leveling. These cases were nominative, vocative, accusative, dative, genitive, ablative, locative and instrumental.
Nouns fall into nine or so declensions, depending on stem. There are *o-stems, *ÃÂ-stems, *i-stems, *u-stems, dental stems, velar stems, nasal stems, *r-stems and *s-stems.
'son' (masculine) (Old Irish ~ Welsh, Cornish and Breton )
However, Celtiberian shows -o- stem genitives ending in -o rather than -ë: aualo "[son] of Avalos". Also note that the genitive singular does not match Proto-Indo-European's -osyo, which would have yielded -osjo.
As in the masculine paradigm, the genitive singular does not match Proto-Indo-European's -osyo, which would have yielded -osjo.
E.g. 'hand' (feminine) (Old Irish ; Welsh }, Cornish , Old Breton )
E.g. 'sight, view, eye' (feminine) (Brittonic sulis ~ Old Irish )
E.g. 'body of water, sea' (neuter) (Gaulish Mori- ~ Old Irish ~ Welsh )
E.g. 'world, existence' (masculine) (Gaulish Bitu- ~ Old Irish ~ Welsh ~ Breton )
E.g. "rotisserie spit" (neuter)
Before the *-s of the nominative singular, a velar consonant was fricated to *-x : "king" > . Likewise, final *-d devoiced to *-t-: "druid" > .
E.g. "king" (masculine)
E.g. "druid" (masculine)
E.g. "friend" (masculine)
Generally, nasal stems end in *-on-; this becomes *-à « in the nominative singular: *abon- "river" > *abà «.
E.g. "river" (feminine)
E.g. "name" (neuter)
Generally,-stems contain an *-es-, which becomes *-os in the nominative singular: 'house' > .
E.g. "house" (neuter)
E.g. *øatër 'father' (masculine)
E.g. *mÃÂtër 'mother' (feminine)
The following personal pronouns in Celtic can be reconstructed as follows:
The following third-person pronouns in Proto-Celtic may also be reconstructed.
Forms of the masculine singular relative pronoun *yo- can be found in the first Botorrita plaque: The form io-s in line 10 is the nominative singular masculine of the relative pronoun from Proto-Indo-European *yo- (Sanskrit ya-, Greek hos), which shows up in Old Irish only as the aspiration for leniting relative verb forms. Line 7 has the accusative singular io-m and the dative singular io-mui of the same root.
Adjectives in Proto-Celtic had positive, comparative, superlative and equative degrees of comparison.
Four inflection classes for positive-degree adjectives are known. Most adjectives belonged to the o-ÃÂ class, in which the adjectives inflected like masculine o-stems, neuter o-stems and feminine ÃÂ-stems when agreeing with nouns of their respective genders. A much smaller minority of adjectives were i- and u-stems.
Consonant-stem adjectives also existed but were vanishingly rare, with only relics in Old Irish like "hot" < .
The comparative degree was formed on most adjectives by attaching to the adjective stem. For instance, "old" would have a comparative "older". However, some Caland system adjectives instead had a comparative ending in , which was then extended to . For example, "wide" had a comparative .
The superlative was formed by simply attaching to the adjective stem. In some adjectives where the stem ends in *s, the suffix is truncated to by haplology. Thus, "old" would have a superlative "oldest" but (stem ) would have a superlative .
From comparison between early Old Irish and Gaulish forms it seems that Continental and Insular Celtic verbs developed differently and so the study of Irish and Welsh may have unduly weighted past opinion of Proto-Celtic verb morphology. It can be inferred from Gaulish and Celtiberian as well as Insular Celtic that the Proto-Celtic verb had at least three moods:
and four tenses:
A probable optative mood also features in Gaulish (tixsintor) and an infinitive (with a characteristic ending -unei) in Celtiberian.
Verbs were formed by adding suffixes to a verbal stem. The stem might be thematic or athematic, an open or a closed syllable.
The primary endings in Proto-Celtic were as follows. They were used to form the present, future, and subjunctive conjugations.
Proto-Celtic possessed a diverse set of ways to form present stems. They can be roughly be divided into two broad categories of athematic and thematic.
These two inflectional categories can themselves be subdivided based on the means of derivation from a verb root via a combination of root ablaut grades and suffixes. These derivational classes include:
In Proto-Celtic, the Indo-European nasal infix presents split into two categories: ones originally derived from laryngeal-final roots (i.e. seá¹ roots in Sanskrit), and ones that were not (i.e. from aniá¹ roots). In seá¹ verbs, the nasal appears at the end of the present stem, while in aniá¹Â-derived verbs the nasal was followed by a root-final stop (generally -g- in Old Irish).
Aniá¹ nasal infix verbs conjugated exactly like basic thematic verbs in the present tense.
However, the origin of the invariant root vowel in -o- in *CewC- roots in Old Irish is unclear. Usually, it is held that the consonantism in these verbs was generalized in favour of the plural stem *CunC- in Old Irish. One would expect alternation between o in the 1st- and 3rd- person plural and -u- elsewhere in the present; but for both contexts Old Irish only attests -o-.
The following verbs can be reconstructed in this class:
On the other hand, the seá¹ presents originally had a long vowel after the nasal in the singular and -a- after the nasal in the plural, but the attested Celtic languages levelled this alternation away. Gaulish shows traces of the singular long-vowel vocalism while Old Irish generalized the plural -a- to the singular.
The seá¹ nasal-infix presents were further subdivided into subcategories based on the root-final laryngeal. Traditionally two subclasses have long been accepted, the subclass (cited with a -ni- suffix) and (cited with a -na- suffix). nasal-infixed verbs were often leveled to act like verbs, being also cited with a -na- suffix; the only original difference between the two would have been the 3rd-person plural ending in *-nonti instead of *-nanti.
The nasal-infix seá¹ verbs in Proto-Celtic underwent multiple levelings. First, the suffixal vowel in the plural forms was harmonized so that they would all be the short counterpart to the vowel in the singular forms. Then all the long vowels in the singular were shortened to make the suffix vowel identical in quality and length across all person-number combinations.
The following seá¹Â-root nasal presents are reconstructible for Proto-Celtic:
There were two or three major preterite formations in Proto-Celtic, plus another moribund type.
The s-, t-, and root aorist preterites take Indo-European secondary endings, while the reduplicated suffix preterite took stative endings. These endings are:
The Old Irish t-preterite was traditionally assumed to be a divergent evolution from the s-preterite, but that derivation was challenged by Jay Jasanoff, who alleges that they were instead imperfects of Narten presents. Either derivation requires Narten ablaut anyway, leading to a stem vowel i in the singular and e in the plural. The stem vowel in the t-preterite was leveled to *e if the next consonant was either velar or *m, and *i in front of *r or *l.
A number of suffixless preterite formations featured reduplication. The nature of the reduplication depends on the structure of the root.
One major formation of the future in Celtic, the s-future, is possibly a descendant of the Proto-Indo-European (hâÂÂ)se-desiderative, with i-reduplication in multiple verbs. The Old Irish a- and s-future may derive from this same Proto-Indo-European paradigm. According to the philologist Calvin Watkins, certain Old Irish s-future forms may have emerged from a type of Proto-Indo-European desiderative class in which the initial consonant was reduplicated with an intervening -vowel followed by a sigmatic suffix with the accent placed on the thematic vowel. For instance, Watkins reconstructs a pre-form (from the root ) as the ancestor of the Old Irish future form . The linguists Eugen Hill and Jay Jasanoff compare this formation to the reduplicated desiderative of Indo-Iranian (e.g. Sanskrit ) and reconstruct an originally thematic paradigm. Hill, in particular, cites the Old Irish term , for which he reconstructs a Proto-Celtic form , itself perhapsâÂÂaccording to HillâÂÂfrom pre-Proto-Celtic . The linguist Frederick Kortlandt further proposes that the reduplicated future of Old Irish may parallel several reduplicated forms in Italic, such as Oscan . However, the Kortlandt alternatively suggests that the s-future and s-subjunctive ultimately derive from the Proto-Indo-European sigmatic aorist and reflect an athematic paradigm. Kortlandt argues that this older athematic inflection was then replaced by secondary thematic endings. Thus, Kortlandt derives Old Irish future forms such as from and from . Moreover, Kortlandt notes the existence of a full-grade Old Irish future form and a zero-grade form , which may parallel Sanskrit and respectively. According to Kortlandt, the recessive accent of both forms and the full-grade of the former indicate an originally athematic inflection. Jasanoff argues that whereas the Old Irish reduplicated future derives from a thematic source, the unreduplicated s-future is etymologically connected to the Sabellic athematic future (e.g. Oscan ), both of whichâÂÂaccording to JasanoffâÂÂhold athematic origins. Another future formation, attested only in Gaulish, is the -sye-desiderative.
Most verbs took one subjunctive suffix in Proto-Celtic, -(a)s-, followed by the thematic primary endings. The subjunctive in Proto-Celtic was a descendant of the subjunctive of an Indo-European sigmatic formation . The -ase- variant originated in roots that ended in a laryngeal in Proto-Indo-European; when the *-se- suffix was attached right after a laryngeal, the laryngeal regularly vocalized into *-a-. It would then analogically spread to other Celtic strong verb roots ending in sonorants in addition to the weak verbs, even if the root did not originally end in a laryngeal.
There were also two, possibly three verbs that did not use -(a)se-, instead straight-out taking thematised primary endings. They are: "to be, exist" (subjunctive ), "to hear" (subjunctive ), and possibly âÂÂto approach, driveâ (subjunctive ).
Primary subjunctive formations in Proto-Celtic generally use the e-grade of the verb root, even if the present stem uses the zero-grade.
Imperative endings in Proto-Celtic were as follows:
The second-person singular imperative was generally endingless in the active; no ending was generally added to athematic verbs. On thematic -e/o- verbs, the imperative ended in thematic vowel *-e. However, there is also another second-person singular active imperative ending, -si, which was attached to the verb root athematically even with thematic strong verbs.
The thematic deponent second-person singular imperative ending was *-eso. The -the in Old Irish is secondary.
The third-person imperative endings in Insular Celtic, Gaulish and Celtiberian have completely separate origins from each other. The Insular Celtic endings are derived from , Gaulish endings from , and the Celtiberian third-person imperative singular ending stems from .
Scholarly reconstructions may be summarised in tabular format.
The copula *esti was irregular. It had both athematic and thematic conjugations in the present tense. Schrijver supposes that its athematic present was used clause-initially and the thematic conjugation was used when that was not the case.
The vast majority of reliably reconstructible lexical items in Proto-Celtic have good Indo-European etymologies, unlike what is found in, for example, the Greek languageâÂÂat least 90% according to Matasovic. These include most of the items on the Swadesh list of basic vocabulary. But a few words that do not have Indo-European cognates, so may be borrowings from substrate or adstrate Pre-Indo-European languages, are also from basic vocabulary, including *bodyo- âÂÂyellowâ (though this has possible cognates in Italic), *kani "good," and *klukka "stone." It is notable that fully 32 items have been reconstructed for Proto-Celtic with the meaning "fight."
(The following examples lack the dual plural and are conjugated in the present tense)
(The following examples lack the dual number)
(The following example lacks the dual number)
Notes
Bibliography