Where does “protester” come from?

protester (Old French) comes 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 “protester”, step by step

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

Words derived from “protester

Every word from Proto-Indo-European steh₂-Every word from Proto-Indo-European tristh₂sEvery word from Latin trīstis