Where does “leasmháthair” come from?

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

leasmháthair (Irish): stepmother

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

leasmháthair — Etymology, Origin & Word History | Etymology Explorer