PROTO: *sV̆rV
MEANING: grey
COMMENT: A Nakh-Tsez. isogloss. Although similar colour names exist in other linguistic families (cf. Russ. серый < Slav. *xĕrъ, Mong. sira 'yellow'), the EC root seems to be genuine (neither the PN nor the Tsez. form can be explained by borrowing).
