Bukiyip (Bukiyúp), or Mountain Arapesh, is an Arapesh language (Torricelli) spoken by around 16,000 people between Yangoru and Maprik in the East Sepik Province of Papua New Guinea. Bukiyip follows the SVO typology. The Arapesh languages are known for their complex noun-phrase agreement system (Bukiyip has 18 of these noun classes).
There are two primary dialects of Bukiyip Chamaun-Yabonuh and Ilipeim-Yamil (western) and two minor dialects Buki and Lohuhwim. Given significant variation among dialects, linguist Robert Conrad suggests that Bukiyip is likely part of dialect chain that also involves other Arapesh languages. The dialects may be further generalized as Coastal Arapesh and Mountain Bukiyip.
Syllabic stress is usually placed on the penultimate syllable, which has a higher pitch.
There are four contrastive intonation contours.
written as: p, t, k, b, d, g, s, ch, j, h, m, n, ny, l, r, w, y
Initial vowels clusters: ou, au, ai, ia
Medial vowel clusters: e (a,o,i,u), a (u,e,i), i (é,a,e), o (u,i), uu, úo
Final vowel clusters: eo, ou, uu
written as: i, e, a, o, u, æ, é, ú
Bukiyip has 18 basic rules for morphophonemic shifts (rules 8âÂÂ18 primarily apply to the Chamaun-Yabonuh and Buki dialects).
<small>The above rules use the following abbreviations:</small>
<small>V<sub>r</sub> â rounded vowels</small>
<small>V<sub>c</sub> â central unrounded vowels</small>
<small>V<sub>u</sub> â unrounded vowels</small>
<small>V<sub>f</sub> â front vowels</small>
<small>C â consonant</small>
<small>C<sub>alv</sub> â alveopalatal consonants</small>
<small>C<sub>r</sub> â rounded consonants</small>
<small># â morpheme boundary in phonological word</small>
There are 18 noun classes with a closed set of suffixes of the form: noun nucleus + number (-unú).
<small>V<sub>1</sub> is the first vowel in a medial vowel cluster, V<sub>2</sub> is the second vowel in a medial vowel cluster.</small>
Pronouns and demonstratives must agree with the noun class and have singular and plural forms, pronouns also encode proximal and distal information.
Possessive pronouns have the form: pronoun + -i + unú (noun number class)
Verbs have a complex structure of affixes encoding mood, object, benefactive, and direction which either have their own classes or must agree with the noun class. The structure is:
Subject (n-) + Mood (u- 'irrealis', a- 'realis') + Object (unú-) + Verb Nucleus (verb root 1âÂÂ6, verb stem 1âÂÂ2)+ Object 2 (-unú) + Benefactive (-m 'benefactive' + or -ag 'here') + Directional (-u 'displaced', -i 'toward speaker', '-uk' permanent).
<small>Object 2 and Benefactive may not occur in all verbs.</small>
All verbs (with the exception of class 6) have a mood marker. The realis mood (mood marker 'a-') concerns events that have happened in the past and present. The irrealis mood (mood marker 'u-') concerns future events and events that did not happen in the past (such as in the case of a mistaken memory). The imperative mood (used for commands) and interrogative mood (used for questions) are formed by clausal transformations.
<small>Class 8 has a second object while class 4 only has one.</small>
Adjectives consist of a root word followed by the appropriate noun-class suffix (see the noun class table).
There are three adverb classes in Bukiyip: (all) in the irrealis mood and '-nubu' (completely) and '-gamu' (well) in the realis mood. All adverbs are inflected, and may have free or bound stems depending on which modifier slot they are placed in the clausal, phrase, or sentence syntax.
There are two basic numeral roots 'atú-' (one) and 'bia-' (two). These numeral prefixes are added to noun root words and then undergo a morphological process (see the Morphophonemics section) that combines them. For example:
atú + -p + utom â atum â otum
or
bia + -ch + âÂÂ
The numeral root (four) is an exception to this assimilation pattern. In addition to the atú- and bia- numeral roots, there is also a stem éné- meaning one, an, or some depending on context.
There are 23 phrase formations in Bukiyip.
1. Modified Verb Phrase: Modifier (class 1âÂÂ2 adverb) + Head (verb class 1âÂÂ7) + Modifier (class 3 adverb, adverb phrase)
2. Repeated Verb Phrase: Head (verb class 10, motion verb) + Modifier (class 3 adverb) + Head (verb class 10, '-lto') + Modifier
3. Coordinate Verb Phrase: Head (verb class 1âÂÂ5, coordinate phrase) + Head (verb class 1âÂÂ5, modified phrase) + Modifier
4. Motion Verb Phrase: Head (motion verb, motion verb phrase) + Head (verb class 3, coordinate verb phrase) + Modifier (adverb class 3)
5. Modified Noun Phrase 1: Modifier (demonstrative, numeral phrase, quantitative stem) + Modifier (class 2 adjective, adjective phrase, nominalised clause, limiter phrase) + Possessive (possessive phrase, possessive pronoun) + Head (class 1âÂÂ15 noun, coordinate noun phrase)
6. Modified Noun Phrase 2: Modifier (noun stem, class 17âÂÂ18 noun, class 3 locative phrase) + Head (noun)
7. Apposition Noun Phrase: Head (apposition noun phrase, coordinate noun phrase, demonstrative, intensive phrase, class 18 noun, pronoun, temporal stem) + Apposition (clause, nominalised clause, coordinate noun phrase, modified noun phrase, class 17âÂÂ18 noun, derived noun stem, pronoun, temporal stem) + Identification (pronoun)
8. Coordinate Noun Phrase: Head (apposition noun phrase, modified noun phrase, class 17 noun, pronoun) + Head (apposition noun phrase, modified noun phrase, class 17 noun, pronoun) + Coordinate ('o', 'úli', + a- + -nú, + ú- + -nú)
9. Possessive Phrase: Head (apposition noun phrase, coordinate noun phrase, demonstrative, class 3 locative phrase, modified noun phrase, class 17âÂÂ18 noun, noun stem) + Possessive (personal pronoun, '-i-')
10. Limiter Phrase: Head (adverb, demonstrative, modified noun phrase, noun stem, pronoun) + Limiter (at- + <únú>, ati)
11. Intensive Phrase: Head (pronoun) + Intensifier ('kénak', 'meho')
12. Instrumental-Benefactor Phrase: Benefactive (umu) + Head (intransitive clause, transitive clause, modified noun phrase)
13. Similarity Phrase: Similarity ('(') + Head (intransitive clause, transitive clause, demonstrative, pronoun, modified noun phrase) + Similarity ('-umu')
14. Accompaniment Phrase: Head (pronoun, modified noun phrase, apposition noun phrase) + Accompaniment ()
15. Locative Phrase 1: Locative (locative) + Head (locative clause, locative word, class 2âÂÂ3 locative phrase 2, modified noun phrase, class 18 noun) + Identifier (class 18 noun)
16. Locative Phrase 2: Head (intransitive clause, transitive clause, locative, noun, pronoun) + Locative ('-umu', '-ahah')
17. Locative Phrase 3: Head (class 2 locative) + Head (class 3 locative)
18. Temporal Phrase 1: Head (temporal stem) + Temporal ('-abali')
19. Temporal Phrase 2: Modifier ('húlúkati-mu) + Head (temporal word)
20. Serial Temporal Phrase: Head (temporal word) + Head (temporal word)
21. Numeral Phrase: Head (modified noun phrase, numeral stem) + Head (numeral stem) + Head (numeral stem)
22. Interrogative Phrase: Modifier (interrogative word) + Head (class 1âÂÂ14 noun)
23. Adjective Phrase: Head (adjective stem) + Head (adjective stem) 1âÂÂ14 noun