Where does “курче” come from?

курче (Bulgarian) comes from Bulgarian кур, from Proto-Slavic kurъ — cock, rooster; male genitalia.

Ancestry of “курче”, step by step

StepLanguageWordMeaning
1Bulgarianкурrooster, cock; dick, cock, penis, prick
2Proto-Slavickurъcock, rooster; male genitalia
Every word from Proto-Slavic kurъEvery word from Bulgarian кур