Etymology Explorer › French

Where does “défaillir” come from?

défaillir (French) comes from French dé-, from Middle French dés-, from Latin dē-, from Latin dē, from Latin post, from Latin poste, from Proto-Italic posti, from Proto-Indo-European pósti — afterwards, post; by, at.

défaillir (French): to faint, feel faint; to weaken, falter, fail

Definitions

  1. to faint, feel faint; to weaken, falter, fail

Ancestry of “défaillir”, step by step

StepLanguageWordMeaning
1Frenchdé-used to make antonyms
2Middle Frenchdés-—
3Latindē-—
4Latindē—
5Latinpostbehind; after, since, besides, except; behind,...
6Latinposteablative singular of postis
7Proto-Italicposti—
8Proto-Indo-Europeanpósti—
9Proto-Indo-Europeanpósafterwards, post; by, at

Words derived from “défaillir”

  • defail
Every word from Proto-Indo-European pós →