Where does “Fabian” come from?

Fabian (German) comes from Latin Fabianus, from Latin Fabius, from Latin -ius, from Proto-Italic -jōs, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

Ancestry of “Fabian”, step by step

StepLanguageWordMeaning
1LatinFabianusbelonging to Fabius
2LatinFabiusof or pertaining to the gens Fabia
3Latin-iusforming adjectives from nouns; nominative neuter...
4Proto-Italic-jōsForms comparative adjectives
5Proto-Indo-European-yósCreates adjectives from noun or verb stems
Every word from Proto-Indo-European -yós →Every word from Latin -ius →Every word from Proto-Italic -jōs →