Where does “mion” come from?

mion (Irish) comes from Old Irish mín, from Proto-Celtic mīno- — soft, tender.

mion (Irish): small, tiny; fine; detailed

Definitions

Step	Language	Word	Meaning
1	Old Irish	mín	smooth, level, calm; self-restrained, gentle,...
2	Proto-Celtic	mīno-	soft, tender

mion — Etymology, Origin & Word History | Etymology Explorer