Unknown. Cabolov compares with Arabic ذُرِّيَّة (ḏurriyya, “progeny”), ذَرارِي (ḏarārī, “children”), which seems possible, though not fully convincing since the Arabic words are of moderate frequence and the stem ḏarr- (zarr-) would have to be an independent backformation in Kurdish. Compare, however, the Kurdish borrowing zurryet (“progeny”) from ذُرِّيَّة (ḏurriyya). Other possibilities include a (vague) derivation from the stem of zan (“to bear; to be born”), from Proto-Indo-European *ǵenh₁-.
- Cabolov, R. L. (2010) Etimologičeskij slovarʹ kurdskovo jazyka [Etymological Dictionary of the Kurdish Language] (in Russian), volume II, Moscow: Russian Academy Press Vostochnaya Literatura, page 519