Proto-West-Caucasian: *wṼč̣́V
Meaning: empty, hollow
Adyghe: nač̣́ǝ
Kabardian: naṣ́
Ubykh: wǝč̣́á
Comments: PAK *nač̣́ǝ́. See Aбдоков 1973, 61, Шагиров 1977, 282. Somewhat uncertain is the status of the first syllable. It can be either reconstructed as *wṼ (with *w- possibly reflecting the old class prefixation), or Shagirov may be right in treating PAK *na- and Ub. wǝ- here as two different derivational morphemes.
