Where does “цікавий” come from?
цікавий (Ukrainian) comes from Polish ciekawy, from Polish -awy, from Polish szpat, from German spät, from Middle High German spǣte, from Old High German spāti, from Proto-West Germanic *spādī, from Proto-Germanic spēdiz — to succeed, to prosper.
Ancestry of “цікавий”, step by step