Proto-West-Caucasian: *ć̣V-
Meaning: 1 know 2 learn
Abkhaz: a-c̣a-rá 2
Adyghe: ṣ́a-n 1
Kabardian: ṣ́a-n 1
Ubykh: ć̣a- 1
Comments: PAT *ć̣a- (cf. also Bz. a-ć̣a-rá); Ub. 1st p. a-s-ć̣á-n. PAK *c̣ʡa-: initial cluster is reconstructed on basis of Shaps. ṣq̇a-. The element -ʡa is treated (by Lomtatidze 1972, 130-133 and Shagirov 2,152) as an affirmative affix. Whatever it was, it influenced the development of the initial affricate (all affricates in such clusters become palatal in PAK). The original c̣- (which is the normal PAK reflex of PWC *ć̣) is probably retained in Kab. c̣ǝ-xʷǝ-n 'be acquainted (with someone)'.
