Where does “Константин” come from?

Константин (Russian) comes from Ancient Greek Κωνσταντῖνος, from Latin Constantinus, from Latin -īnus, from Proto-Italic -īnos, from Proto-Indo-European -iHnos, from Proto-Indo-European -no- — adjectival suffix.

Ancestry of “Константин”, step by step

StepLanguageWordMeaning
1Ancient GreekΚωνσταντῖνοςConstantin
2LatinConstantinus
3Latin-īnusof or pertaining to; -ine
4Proto-Italic-īnosof/belonging to
5Proto-Indo-European-iHnosCreates adjectives of materials
6Proto-Indo-European-no-adjectival suffix

Words derived from “Константин

Every word from Proto-Indo-European -no-Every word from Latin -īnusEvery word from Proto-Italic -īnos