The etymology seems reliable semantically and phonetically (although the PN vowel length is not quite clear: the PWC form presupposes a short PNC vowel). All other parallels suggested for the PWC form meet serious phonetic obstacles (Trubetzkoy's [1930, 278] comparison with Chech. ben 'nest' etc.; Lomtatidze's [1955] comparison with Old Georg. saq̇udeli, Megr. ʕude, Av. ruq̇: 'house'; Abdokov's [1983, 133] comparison with obvious late loanwords like Gunz. bina 'building' etc.). The Georgian form wani 'house, dwelling', cited by Charaya (1912) and Bouda (1950) is most probably an Adygh loan.