Where does “máithrigh” come from?

máithrigh (Irish) comes from Irish máthair, from Old Irish máthir, from Proto-Celtic mātīr, from Proto-Indo-European méh₂tēr — mother.

máithrigh (Irish): mother, bear; foster

Definitions

Step	Language	Word	Meaning
1	Irish	máthair	mother
2	Old Irish	máthir	mother
3	Proto-Celtic	mātīr	mother
4	Proto-Indo-European	méh₂tēr	mother

máithrigh — Etymology, Origin & Word History | Etymology Explorer