Where does “Marcius” come from?

Marcius comes from Latin Marcius, derived from Latin Marcus, which traces to Proto-Italic Māwortis through Proto-Indo-European -kos suffix formations.

Ancestry of “Marcius”, step by step

StepLanguageWordMeaning
1LatinMarciusof or pertaining to the gens Marcia, Marcian
2LatinMārcus—
3LatinMartīnus—
4Latin-īnusof or pertaining to; -ine
5Proto-Italic-īnosof/belonging to
6Proto-Indo-European-iHnosCreates adjectives of materials
7Proto-Indo-European-no-adjectival suffix
Every word from Proto-Indo-European -no- →
Marcius — Etymology, Origin & Word History | Etymology Explorer