Where does “insane” come from?

Insane derives from Latin insanus, formed from the prefix in- and the root of Latin sanus, ultimately from Proto-Indo-European ne, meaning "not."

insane (English): Exhibiting unsoundness or disorder of mind; not...

Definitions

  1. Exhibiting unsoundness or disorder of mind; not...

Ancestry of “insane”, step by step

StepLanguageWordMeaning
1Latinīnsānusmad, insane, demented
2Latinīn-un-, non-, not
3Latinînin, at, on, upon, from (space)
4Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
5Proto-Italicenin
6Proto-Indo-Europeanh₁énin

Words derived from “insane”

Every word from Proto-Indo-European h₁én →Every word from Latin īn- →Every word from Proto-Italic en →