Where does “insane” come from?

insane (Latin) comes from Latin insanus, from Latin in-, from Latin in, from Old Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

insane (Latin): vocative masculine singular of īnsānus

Definitions

  1. vocative masculine singular of īnsānus

Ancestry of “insane”, step by step

StepLanguageWordMeaning
1Latininsanusmad, insane, demented
2Latinin-un-, non-, not; in, within, inside
3Latininin, at, on, upon, from; within, while in; into,...
4Old Latinenin
5Proto-Italicenin
6Proto-Indo-Europeanh₁énin
Every word from Proto-Indo-European h₁én →Every word from Proto-Italic en →Every word from Latin in- →