Where does “gyrwyr” come from?

gyrwyr (Welsh) comes from Welsh gyrru, from Welsh -u, from Middle Welsh -u, from Proto-Brythonic -oβ̃ — Forms verbal nouns, originally from thematic...

Ancestry of “gyrwyr”, step by step

gyrwyr traces back through two separate lines of ancestry.

via Welsh gyrru

StepLanguageWordMeaning
1Welshgyrruto drive
2Welsh-uimpression, imprint
3Middle Welsh-u—
4Proto-Brythonic-oβ̃Forms verbal nouns, originally from thematic...

via Welsh ŵyr

StepLanguageWordMeaning
1WelshŵyrSoft mutation of gŵyr; grandson, grandchild
2Middle WelshwyrSoft mutation of gwyr
Every word from Proto-Brythonic -oβ̃ →Every word from Welsh -u →Every word from Welsh gyrru →