Where does “protesten” come from?

protesten (Middle English) comes from Old French protester, from Latin prōtestārī, from Latin testor, from Latin testis, from Latin terstis, from Latin trīstis, from Proto-Indo-European tristh₂s, from Proto-Indo-European steh₂- — to stand.

Ancestry of “protesten”, step by step

StepLanguageWordMeaning
1Old Frenchprotester
2Latinprōtestārī
3LatintestorI am witness, testify, attest; I make a will
4Latintestiswitness; one who testifies or attests; testicle
5Latinterstis
6Latintrīstissad, unhappy, melancholy, morose
7Proto-Indo-Europeantristh₂sa third party standing, after the two parties to...
8Proto-Indo-Europeansteh₂-to stand

Words derived from “protesten

Every word from Proto-Indo-European steh₂-
protesten — Etymology, Origin & Word History | Etymology Explorer