Where does “Cosăceanu” come from?

Cosăceanu (Romanian) comes from Romanian cosac, from Bulgarian косак.

Ancestry of “Cosăceanu”, step by step

StepLanguageWordMeaning
1Romaniancosaczope, blue bream (Ballerus ballerus, syn. Abramis ballerus)
2Bulgarianкосак—
Every word from Bulgarian косак →Every word from Romanian cosac →