The Torre Valley dialect or Ter Valley dialect ( , ) is the westernmost and the most Romanized Slovene dialect. It is one of the most endangered Slovene dialects and is threatened with possible extinction. It is also one of the most archaic Slovene dialects, together with the Gail Valley and Natisone Valley dialects, which makes it interesting for typological research. It is spoken mainly in the Torre Valley in the Province of Udine in Italy, but also in western parts of the Municipality of Kobarid in the Slovene Littoral in Slovenia. The dialect borders the SoÃÂa dialect to the east, the Natisone Valley dialect to the southeast, Resian to the north, and Friulian to the southwest and west. The dialect belongs to the Littoral dialect group, and it evolved from VenetianâÂÂKarst dialect base.
The dialect is spoken mainly in northeastern Italy, in the province of Friuli-Venezia Giulia, roughly along the Torre River () from Tarcento () upstream. It also extends beyond this; it is bounded by Monti Musi () to the north, by the Friulian plain to the west and south, and by Mount Joanaz () to the east, completely filling the area between the Natisone Valley and the Resian dialect. The dialect thus also extends into Slovenia, to the Breginj Combe in the Municipality of Kobarid in the Slovene Littoral, being spoken in villages such as Breginj, Logje, and Borjana. Larger settlements in the dialect area include Montefosca (), Prossenicco (), Canebola (), Cergneu (), Torlano (), Taipana (), Monteaperta (), Vedronza (), Lusevera (), Torre (), and Musi ().
Historically, it included the village of Pers ( or Brieh), the westernmost ethnically Slovene village.
The Torre Valley dialect retains pitch accent on long syllables, which are still longer than short syllables. It has undergone only one accent shift on most of its territory: the > accent shift. However, the microdialects of Porzus (), Prossenicco, and Subit () have also undergone the > and > accent shifts, resulting in a new short stressed syllable. The microdialect of Subit still retains length on formerly stressed vowels after the latter shift.
Alpine Slavic and later lengthened turned into , simplifying into in the south. Similarly, long also turned into , simplifying into in the south, whereas later lengthened turned into in the west, progressing all the way to in the south. Similarly, also varies between and , but the distribution is more sporadic. Nasal and evolved the same, but may not have merged with their non-nasal counterparts in all microdialects. Syllabic turned into ~ in the west and into in the east. Syllabic turned into in the west and in the east. Vowel reduction is not common. Akanye is present in some microdialects for and . Ukanye is more common, and simplified into in the west and to in the east. In some microdialects, particularly in the west, secondary nasalization of vowels occurs in sequences consisting of vowel + final /.
Eastern dialects simplified into , whereas in the west it completely disappeared. In the far west (e.g., Torre), alveolar and post-alveolar sibilants merged. The consonant mostly turned into . Palatal is still palatal, and turned into .
The morphology of the Torre Valley dialect differs greatly from that of standard Slovene, mainly because of influence of Romance languages.
The neuter gender exists in the singular, but it has been feminized in plural. Dual forms are limited to the nominative and accusative cases, and verbs do not have separate dual forms, although the ending is used for the second-person plural, and is reserved for vikanje. The dialect has two future forms: future I, formed with the verb 'want' in the present tense followed by an infinitive, and future II, formed in the same way as the future in standard Slovene. The dialect also has a subjunctive, which is formed with + the imperative form. The pluperfect still exists, as well as the long infinitive. The dialect also has -l, -n, and -ÃÂ (equivalent to standard Slovene -ÃÂ) participles.
The dialect already appeared in written form in the Cividale manuscript in 1479, but it was not later used in written form. Today, because of the lack of a language policy and Italianization, the dialect has a very small number of speakers and is threatened with extinction. In 2009, a dictionary of the Torre Valley dialect was published, based on material mainly collected at the end of the 19th century, but also in the 20th century.