Where does “merc’hed” come from?

merc’hed (Breton) comes from Breton merc’h, from Proto-Celtic merkā, from Proto-Indo-European méryos — boy, girl; young man.

Ancestry of “merc’hed”, step by step

StepLanguageWordMeaning
1Bretonmerc’hdaughter
2Proto-Celticmerkāgirl
3Proto-Indo-Europeanméryosboy, girl; young man
Every word from Proto-Indo-European méryos →Every word from Proto-Celtic merkā →Every word from Breton merc’h →