Where does “máthairtheanga” come from?

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

máthairtheanga (Irish): mother tongue

Definitions

  1. mother tongue

Ancestry of “máthairtheanga”, step by step

máthairtheanga traces back through two separate lines of ancestry.

via Irish máthair

StepLanguageWordMeaning
1Irishmáthairmother
2Old Irishmáthirmother
3Proto-Celticmātīrmother
4Proto-Indo-Europeanméh₂tērmother

via Irish teanga

StepLanguageWordMeaning
1Irishteangatongue; language
2Old Irishtengaetongue; language
3Proto-Celtictangʷāt-—
4Proto-Indo-Europeandn̥ǵʰwéh₂stongue
Every word from Proto-Indo-European méh₂tēr →Every word from Proto-Celtic mātīr →Every word from Old Irish máthir →