Where does “testificandus” come from?

testificandus (Latin) comes from Latin testificor, from Latin testis, from Latin terstis, from Latin trīstis, from Proto-Indo-European tristh₂s, from Proto-Indo-European steh₂- — to stand.

Definitions

Ancestry of “testificandus”, step by step

StepLanguageWordMeaning
1LatintestificorI testify, bear witness; I bring to light,...
2Latintestiswitness; one who testifies or attests; testicle
3Latinterstis
4Latintrīstissad, unhappy, melancholy, morose
5Proto-Indo-Europeantristh₂sa third party standing, after the two parties to...
6Proto-Indo-Europeansteh₂-to stand
Every word from Proto-Indo-European steh₂-
testificandus — Etymology, Origin & Word History | Etymology Explorer