Where does “скучити” come from?
скучити (Serbo-Croatian) comes from Serbo-Croatian ку̏к, from Proto-Slavic kъlkъ, from Proto-Balto-Slavic kaukāˀ, from Proto-Indo-European klHk(ᵂ)-(n)-.
скучити (Serbo-Croatian): to bend, cramp, bow
Ancestry of “скучити”, step by step