Proto-North Caucasian: *jVcwĔ
Meaning: mouse
Notes: A Darg.-WC isogloss, but probably very archaic (see Starostin 1982, 218). PD *waca can only go back to a PEC form like *jVcwV with metathesis of labialisation (original *w- would have yielded PD *b-).
From other EC languages one could possibly list also PGB *ʔɨ̃z-baṭu (Bezht. izmaṭo, Gunz. ǝ̃zbaṭu 'weasel, squirrel'). PGB *ʔɨ̃z- would correspond well to PD *waca < *jacʷa, but would suggest a PEC (and PNC) form with some medial resonant (most probably *jVncwĔ).
