Proto-Lezghian: *ʔilχan
Meaning: to work
Tabasaran: li=χ-
Agul: luχ-
Archi: irχʷin-
Comment: Cf. also Ag. Bursh., Tp. liχan- 'to work', and the derivates: Tab. laχIin, Ag. Bursh. leχen 'work', Rut. luχun 'collective work (while building a house)'. Here we must also relate Lezg. ḳʷa-laχ- 'to work', Rut. gʷa-laχ 'work' (although the prefixation is not clear). The Archi form has a secondary labialisation (inf. irχʷmus < *irχn-bos with assimilation); however, tense -χ:ʷ- in durative forms (like =irχ:ʷin) must be secondary, because all other languages and the external evidence point certainly to weak PL *-χ-.
See Лексика 1971, 147; Хайдаков 1973, 137.
