Where does “meyr” come from?

meyr (Middle English) comes from Old French maire, from Latin māior, from Latin magnus, from Proto-Indo-European meǵh₂- — big, great; great; big, stour, great.

Ancestry of “meyr”, step by step

Step	Language	Word	Meaning
1	Old French	maire	primary; principal; most major; a senior public...
2	Latin	māior	ancestors, forefathers; advanced in years, the aged; the elders
3	Latin	magnus	large, big; great; important
4	Proto-Indo-European	meǵh₂-	big, great; great; big, stour, great

Every word from Proto-Indo-European meǵh₂- →Every word from Latin magnus →Every word from Latin māior →