Protoform: *č̣am- / *=Vč̣ʷVn-
Meaning: to chew
Avar: č̣ám-ize
Chadakolob: č̣ám-ži
Andian language: č̣am-mu
Akhvakh: č̣on-uƛa
Chamalal: č̣ač̣an-
Tindi: č̣ač̣an-iʎa
Karata: č̣am-aʎa
Godoberi: č̣anč̣a-di
Comments: Some of the forms are reduplicated, going back to a stem *č̣ič̣(ʷ)an-; cf. also Av. Chad. č̣uč̣ú-ji 'to gnaw'. From the stem *č̣am- cf. also Akhv. Tseg. č̣am-aq:e, Ratl. č̣am-u. The stem *=ič̣ʷVn- (ultimately going back to *=ič̣Vm-) and its reduced variant *č̣ʷVn- is reflected in Akhv. č̣on- ( = Tind. č̣un-iʎa 'to bite') and Tind. =ač̣ʷĩ-ʎa 'to gnaw'.
Finally, we should mention some nominal derivates: Av. č̣amč̣ám 'eating, meal', č̣andéro 'jaw' (cf. the frequentative č̣andé-ze 'to chew'), Av. Chad. č̣ánda 'jaw' and And. č̣amč̣al id.
