Where does “tystysgrif” come from?

tystysgrif (Welsh) comes from Welsh tyst, from Middle Welsh tyst, from Proto-Brythonic *tɨst, from Latin testis, from Latin terstis, from Latin trīstis, from Proto-Indo-European tristh₂s, from Proto-Indo-European steh₂- — to stand.

tystysgrif (Welsh): certificate, diploma

Definitions

  1. certificate, diploma

Ancestry of “tystysgrif”, step by step

tystysgrif traces back through two separate lines of ancestry.

via Welsh tyst

StepLanguageWordMeaning
1Welshtystwitness
2Middle Welshtyst
3Proto-Brythonic*tɨst
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

via Welsh ysgrif

StepLanguageWordMeaning
1Welshysgrifliterary essay; essay; a writing
2Welshysgrifena writing, something written
3Middle Welshysgriuen
4Old Welshscribenn
5Proto-Brythonicskriβenn
6Latinscrībendumwriting
Every word from Proto-Indo-European steh₂-
tystysgrif — Etymology, Origin & Word History | Etymology Explorer