Proto-West-Caucasian: *ʒʷa
Meaning: 1 to wash 2 to dam, cut off (water)
Abkhaz: á-ǯ̌ǯ̌a-ra 1
Abaza: ǯʷǯʷa-ra 1
Adyghe: ʒ́ʷa- 2
Comments: PAT *ʒʷa (with emphatic gemination). Phonetically the Ad.-Abkh. comparison is very probable; the semantic change must be postulated as "to pour water (enough) for washing" > "to cut off (water), to dam".