Where does “testimonialist” come from?

testimonialist (English) comes from English testimonial, from French testimonial, from Latin testimonialis, from Latin testimōnium, from Latin testis, from Latin terstis, from Latin trīstis, from Proto-Indo-European tristh₂s — to stand.

testimonialist (English): One who gives a testimonial

Definitions

  1. One who gives a testimonial

Ancestry of “testimonialist”, step by step

testimonialist traces back through two separate lines of ancestry.

via English testimonial

StepLanguageWordMeaning
1EnglishtestimonialA statement, especially one given under oath;...
2Frenchtestimonialtestimonial
3Latintestimonialis
4Latintestimōniumtestimony, witness
5Latintestiswitness; one who testifies or attests; testicle
6Latinterstis
7Latintrīstissad, unhappy, melancholy, morose
8Proto-Indo-Europeantristh₂sa third party standing, after the two parties to...
9Proto-Indo-Europeansteh₂-to stand

via English ist

StepLanguageWordMeaning
1EnglishistA practitioner or supporter of an ism
2English-istAdded to words to form nouns denoting
3Old French-iste
4Latin-ista-ist; one who practises or believes
5Ancient Greek-ιστήςAlternative form of -τής; -ist
6Ancient Greek-τήςAppended to verbs to form agent nouns
7Proto-Hellenic-tās
Every word from Proto-Indo-European steh₂-