Where does “ymdynghedu” come from?

ymdynghedu (Welsh) comes from Welsh ym — Form of yn used before bilabials.

ymdynghedu (Welsh): to swear (an oath), to vow

Definitions

  1. to swear (an oath), to vow

Ancestry of “ymdynghedu”, step by step

ymdynghedu traces back through two separate lines of ancestry.

via Welsh ym

StepLanguageWordMeaning
1WelshymForm of yn used before bilabials

via Welsh tynghedu

StepLanguageWordMeaning
1Welshtynghedu
Every word from Welsh ym