Комментарии: PAT *c̣a (cf. also Bzyb forms recorded by Marr: á-d-c̣a-ra 'to heap, put on top', á-c-c̣a-ra 'to add'); PAK *ḳa-c̣ǝ- (*ḳa 'egg'). The original meaning of the root is 'to put' (or 'to give'): cf. with other preverbs: Abkh. á-kʷ-c̣a-ra, Abaz. (jǝ)-kʷ-c̣a-ra 'to put'; PAK *na-c̣a- "to put an eye [ = Russ. положить глаз] > to envy, to aspire" (Ad., Kab. nac̣a-n).