Sanzhi Dargwa belongs to the Dargwa (Dargi) languages (ISO dar; Glottocode sanz1248) which form a subgroup of the East Caucasian (Nakh-Dagestanian) language family. Sanzhi Dargwa is spoken by approximately 250 speakers and is severely endangered. This book is the first comprehensive descriptive grammar of Sanzhi, written from a typological perspective. It treats all major levels of grammar (phonology, morphology, syntax) and also information structure. Sanzhi Dargwa is structurally similar to other East Caucasian languages, in particular Dargwa languages. It has a relatively large consonant inventory including pharyngeal and ejective consonants. Sanzhi morphology is concatenative and mainly suffixing. The language exhibits a mixture of dependent-marking in the form of a rich case inventory and head-marking in the form of verbal agreement. Nouns are divided into three genders. Verbal inflection conflates tense/aspect/mood/evidentiality in a rich array of synthetic and analytic verb forms as well as participles, converbs, a masdar (verbal noun), and infinitive and some other forms used in analytic tenses and subordinate clauses. Salient traits of the grammar are two independently operating agreement systems: gender/number agreement and person agreement. Within the nominal domain, modifiers agree with the head nominal in gender/number. Agreement within the clausal domain is mainly controlled by the argument in the absolutive case. Person agreement operates only at the clausal level and according to the person hierarchy 1, 2 > 3. Sanzhi has ergative alignment in the form of gender/number agreement and ergative case marking. The most frequent word order at the clause level is SOV, though all other logically possible word orders are also attested. In subordinate clauses, word order is almost exclusively head-final.

This book is an investigation into the grammar of Mehweb (Dargwa, East Caucasian also known as Nakh-Daghestanian) based on several years of team fieldwork. Mehweb is spoken in one village community in Daghestan, Russia, with a population of some 800 people, In many ways, Mehweb is a typical East Caucasian language: it has a rich inventory of consonants; an extensive system of spatial forms in nouns and converbs and volitional forms in verbs; pervasive gender-number agreement; and ergative alignment in case marking and in gender agreement. It is also a typical language of the Dargwa branch, with symmetrical verb inflection in the imperfective and perfective paradigm and extensive use of spatial encoding for experiencers. Although Mehweb is clearly close to the northern varieties of Dargwa, it has been long isolated from the main body of Dargwa varieties by speakers of Avar and Lak. As a result of both independent internal evolution and contact with its neighbours, Mehweb developed some deviant properties, including accusatively aligned egophoric agreement, a split in the feminine class, and the typologically rare grammatical categories of verificative and apprehensive. But most importantly, Mehweb is where our friends live.