Protoform: *=ič̣u- /*č̣V-
Meaning: empty
Avar: č̣o-bó-go-ja-
Andian language: =eč̣u-gu
Akhvakh: heč̣u-da-
Chamalal: =eč̣u-
Tindi: =eč̣u-ja-
Karata: =eč̣u-da-
Botlikh: =eč̣u-da
Bagvalal: =eč̣u-ra-
Godoberi: =eč̣u-da
Comments: A typical alternation of Av.-And. Stem I and Stem II. Stem I (*-ič̣u-) is used mostly as an adjective; note that in Akhv it has a laryngeal Anlaut and no class prefixes (*Hič̣u-; cf. also Ratl. eč̣u-da), which may be the most archaic situation. But cf. also the verbal usage (Akhv. heč̣u-, And. -eč̣u-x-, Cham. -eč̣u-h-, Tind. -eč̣u-h-, Kar., Botl., Bagw. -eč̣u- "to empty"). Stem II is always accompanied by suffixes (Av. č̣o-bó-goja- 'empty', č̣e-xé- 'to empty', Kar. č̣e-ba- id.).
