Where does “inimic” come from?

inimic (Old French) comes from Latin inimicus, from Latin in-, from Latin in, from Old Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

Ancestry of “inimic”, step by step

StepLanguageWordMeaning
1Latininimicusenemy; unfriendly, hostile; injurious
2Latinin-un-, non-, not; in, within, inside
3Latininin, at, on, upon, from; within, while in; into,...
4Old Latinenin
5Proto-Italicenin
6Proto-Indo-Europeanh₁énin

Words derived from “inimic

Every word from Proto-Indo-European h₁én