Comments: PAT *šǝ (used independently as "wall-eye": Abkh. á-š, Abaz. šǝ; the meaning of the element *-ḳʷaḳʷa is not clear); PAK *xʷǝ-ž́ǝ́ (with a suffix *-ž́ǝ common for names of colours).
A similar root is used in WC with the meaning 'dawn, light': PAT *ša- 'to come (of dawn)' (Abkh. a-ša-rá, Abaz. ša-ra), PAK *ná-xʷǝ 'light' (Ad. naf, Kab. naxʷ), Ub. sʷǝ 'dawn', a-sʷǝ́-n 'dawn is coming'. However, it differs from *ʎʷV 'white' accentologically and may have a different origin.