Proto-West-Caucasian: *sA (~ *š-)
Meaning: what
Adyghe: sǝd(ā)
Kabardian: sǝt
Ubykh: sa
Comments: PAK *sǝ- (the Bzhed. and Shaps. variant śǝ-d is still unexplained). The second part of the stem (Ad. -d, Kab. -t) raises some problems. In Kab. -t could have been obtained under influence of xa-t 'who' (q.v.); thus we should probably reconstruct *-dA for PAK. The precise nature of this *-dA is not clear (perhaps it reflects the PWC demonstrative *da).
