Proto-Altaic: *čā̀ma
Meaning: to hesitate, argue
Russian meaning: сомневаться, спорить
Comments: One of the suffixed forms - *čā̀ma-rV- (TM *ǯāmV-ra-) or *čā̀ma-lV- (Mong. *dam-la-) may be reflected in PJ *tàmià-ra-; the diphthong -ia- ( ~ -ai-) may, however, suggest a more complex origin of the Japanese form.