Where does “Dementierer” come from?

Dementierer (German) comes from German dementieren, from French démentir, from French dé-, from Middle French dés-, from Latin dē-, from Latin dē, from Latin post, from Latin poste — afterwards, post; by, at.

Ancestry of “Dementierer”, step by step

StepLanguageWordMeaning
1Germandementierento deny
2Frenchdémentirto contradict, gainsay; to deny, refute; to belie
3Frenchdé-used to make antonyms
4Middle Frenchdés-de-; dis
5Latindē-of; from
6Latinof; concerning; about
7Latinpostbehind; after, since, besides, except; behind,...
8Latinposteablative singular of postis
9Proto-Italicpostibehind, after
10Proto-Indo-Europeanpóstiafter
11Proto-Indo-Europeanpósafterwards, post; by, at
Every word from Proto-Indo-European pósEvery word from Latin dē-Every word from Proto-Indo-European pósti