Where does “Gennaro” come from?

Gennaro is an Italian given name derived from Latin Ianuarius, the first month of the Roman calendar named for the god Janus.

Ancestry of “Gennaro”, step by step

StepLanguageWordMeaning
1ItalianGennarotypical of Naples
2Latiniānuāriusof January
3Latin-āriuser
4Proto-Italic*-āziosForms relational adjectives to nouns (and rarely numerals)
Every word from Proto-Italic *-āzios →Every word from Latin -ārius →Every word from Latin iānuārius →
Gennaro — Etymology, Origin & Word History | Etymology Explorer