Where does “dément” come from?

dément (Middle French) comes from Latin demens, from Latin demento, from Latin dēmēns, from Latin dē-, from Latin dē, from Latin post, from Latin poste, from Proto-Italic posti — afterwards, post; by, at.

Ancestry of “dément”, step by step

StepLanguageWordMeaning
1Latindemensout of one's mind or senses; mad, raving,...
2LatindementoI make mad or crazy, drive crazy; I bewitch; I...
3Latindēmēnsout of one’s mind or senses: mad, raving, insane, crazy; more generally: foolish, reckless, distracted, infatuated
4Latindē-of; from
5Latinof; concerning; about
6Latinpostbehind; after, since, besides, except; behind,...
7Latinposteablative singular of postis
8Proto-Italicpostibehind, after
9Proto-Indo-Europeanpóstiafter
10Proto-Indo-Europeanpósafterwards, post; by, at
Every word from Proto-Indo-European pósEvery word from Latin dē-Every word from Proto-Indo-European pósti