Where does “доку́чити” come from?
доку́чити (Serbo-Croatian) comes from Serbo-Croatian ку̏к, from Proto-Slavic kъlkъ, from Proto-Balto-Slavic kaukāˀ, from Proto-Indo-European klHk(ᵂ)-(n)-.
Ancestry of “доку́чити”, step by step
Words derived from “доку́чити”