Where does “ininflammable” come from?

ininflammable (French) comes from French in-, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

ininflammable (French): nonflammable

Definitions

  1. nonflammable

Ancestry of “ininflammable”, step by step

StepLanguageWordMeaning
1Frenchin-in-; un-
2Latinīn-un-, non-, not
3Latinînin, at, on, upon, from (space)
4Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
5Proto-Italicenin
6Proto-Indo-Europeanh₁énin
Every word from Proto-Indo-European h₁én →Every word from Latin īn- →Every word from Proto-Italic en →