Comment: Cf. also Ag. Burk. ǯar 'film, membrane (in meat)', Bursh. ǯar 'flat bread'. There is not enough information to reconstruct the PL obl. stem (only Rut. ǯará-). 3d class in Rut., 4th class in Kryz.
A Lezg. loanword (probably, from Ag.) is Darg. Chir. žer 'bark, skin'.