COMMENT: A nursery word; however, its common NC ancestry can not be doubted. The palatalisation in PWC *ṕ: can be explained by the influence of *-j. See Abdokov 1983, 86 (although the PAK form (in view of its AT correlates) should be kept apart from PEC *dādājV 'father' (q.v.).
In Lak. there occurred a reduction of the first vowel (cf. an analogous feature in Kryz.). Khin. has also a form bɨj 'father', but this is most likely an old Shakh-Dagh loanword.
