Where does “Negroiu” come from?

Negroiu (Romanian) comes from Romanian negru, from Latin Niger, from Proto-Indo-European negʷ- — bare, naked.

Ancestry of “Negroiu”, step by step

StepLanguageWordMeaning
1Romaniannegrublack; dirty, grimy; black person
2LatinNigerA Roman agnomen, or "nickname"
3Proto-Indo-Europeannegʷ-bare, naked
Every word from Proto-Indo-European negʷ- →Every word from Latin Niger →Every word from Romanian negru →