Where does “Marciano” come from?

Marciano (English) comes from Italian Marciano, from Latin Marcianus, from Latin Mārcus, from Latin Martīnus, from Latin -īnus, from Proto-Italic -īnos, from Proto-Indo-European -iHnos, from Proto-Indo-European -no- — adjectival suffix.

Ancestry of “Marciano”, step by step

StepLanguageWordMeaning
1ItalianMarcianopertaining to San Marco patron saint of Venice
2LatinMarcianusof or pertaining to Mārcus or Mārcius, Marcian
3LatinMārcus
4LatinMartīnus
5Latin-īnusof or pertaining to; -ine
6Proto-Italic-īnosof/belonging to
7Proto-Indo-European-iHnosCreates adjectives of materials
8Proto-Indo-European-no-adjectival suffix
Every word from Proto-Indo-European -no-Every word from Latin -īnusEvery word from Latin Martīnus