Where does “Costoiu” come from?

Costoiu (Romanian) comes from Romanian -oiu, from Romanian -oi, from Latin -oneus.

Ancestry of “Costoiu”, step by step

StepLanguageWordMeaning
1Romanian-oiusuffix forming many Romanian surnames
2Romanian-oiaugmentative suffix, used to indicate a larger...
3Latin-oneus—
Every word from Latin -oneus →Every word from Romanian -oiu →Every word from Romanian -oi →