Proto-Lezghian: *ʔalχʷVr- / *-χIʷ-
Meaning: 1 diarrhea 2 to defecate
Agul: arχʷ 1
Tsakhur: arχʷ 1 (Gelm.)
Kryz: ħür-hä- 2
Budukh: s-aħar- 2
Comment: The verbal stem is preserved only in Bud. As a nominal stem *ʔalχʷVr / *ʔilχIʷVr it is reflected in Ag., Tsakh. arχʷ (a back-formation from a form = Ag. plur. arχʷar with -r reinterpreted as a plural suffix), Kryz. ħür- (now only within a compound verb), Bud. ħure 'diarrhea'.
Variation between *χʷ / *χIʷ is probably explained by the root's expressive character.
