Where does “demonstrator” come from?

demonstrator (Romanian) comes from French démonstrateur, from French démontrer, from Middle French demonstrer, from Old French demonstrer, from Latin dēmōnstrō, from Latin dē-, from Latin dē, from Latin post — afterwards, post; by, at.

demonstrator (Romanian): demonstrator

Definitions

  1. demonstrator

Ancestry of “demonstrator”, step by step

StepLanguageWordMeaning
1Frenchdémonstrateurdemonstrator
2Frenchdémontrerto prove, to demonstrate
3Middle Frenchdemonstrerto demonstrate
4Old FrenchdemonstrerAlternative form of demoustrer
5Latindēmōnstrōto show, demonstrate, prove
6Latindē-of; from
7Latinof; concerning; about
8Latinpostbehind; after, since, besides, except; behind,...
9Latinposteablative singular of postis
10Proto-Italicpostibehind, after
11Proto-Indo-Europeanpóstiafter
12Proto-Indo-Europeanpósafterwards, post; by, at
Every word from Proto-Indo-European pósEvery word from Latin dē-Every word from Proto-Indo-European pósti