Proto-Sino-Caucasian: *ǯwĕ
Meaning: day (today, tomorrow)
Comments and references : E.g., Dargi Chiragh ža-ʕle ‘tomorrow’. The Bsq words denote 'day after tomorrow', 'three days hence', and (archaic BZK) 'four days hence'. Etymological comparison suggested by John Bengtson.