Where does “illegal” come from?

Illegal comes from French illégal, from Medieval Latin illegalis, composed of Latin in- (not) and -alis (suffix), with in- deriving from Proto-Indo-European ne (not) and -alis from the root leǵ- (to lay or gather).

illegal (English): Contrary to or forbidden by law, especially...

Definitions

  1. Contrary to or forbidden by law, especially...

Ancestry of “illegal”, step by step

StepLanguageWordMeaning
1Frenchillégalillegal; not permitted by law
2Medieval Latinillegalisillegal
3Latinlēgālislegal
4Latinlēxa proposition or motion for a law made to the people by a magistrate, a bill
5Proto-Italiclēg-—
6Proto-Indo-Europeanleǵ-s—
7Proto-Indo-Europeanleǵ-to gather, collect, with derivatives meaning to...

Words derived from “illegal”

Every word from Proto-Indo-European leǵ- →Every word from Proto-Indo-European leǵ-s →Every word from Proto-Italic lēg- →