Where does “*mātrikʷā” come from?

*mātrikʷā (Proto-Celtic) comes from Proto-Celtic mātīr, from Proto-Indo-European méh₂tēr — mother.

Ancestry of “*mātrikʷā”, step by step

StepLanguageWordMeaning
1Proto-Celticmātīrmother
2Proto-Indo-Europeanméh₂tērmother
Every word from Proto-Indo-European méh₂tēr →Every word from Proto-Celtic mātīr →