Where does “achubwyr” come from?

achubwyr (Welsh) comes from Welsh ŵyr, from Middle Welsh wyr — Soft mutation of gwyr.

Ancestry of “achubwyr”, step by step

achubwyr traces back through two separate lines of ancestry.

via Welsh ŵyr

StepLanguageWordMeaning
1WelshŵyrSoft mutation of gŵyr; grandson, grandchild
2Middle WelshwyrSoft mutation of gwyr

via Welsh achub

StepLanguageWordMeaning
1Welshachubto save, to rescue
Every word from Middle Welsh wyrEvery word from Welsh ŵyr