Where does “Muircheartach” come from?

Muircheartach (Old Irish) comes from Old Irish muir, from Proto-Celtic mori, from Proto-Indo-European móri, from Proto-Indo-European mer- — to die; to disappear; sea, lake, wetland.

Ancestry of “Muircheartach”, step by step

Muircheartach traces back through two separate lines of ancestry.

via Old Irish muir

StepLanguageWordMeaning
1Old Irishmuirsea
2Proto-Celticmorisea
3Proto-Indo-Europeanmórisea; standing water
4Proto-Indo-Europeanmer-to die; to disappear; sea, lake, wetland

via Old Irish cheartach

StepLanguageWordMeaning
1Old Irishcheartachwarrior
Every word from Proto-Indo-European mer- →Every word from Proto-Indo-European móri →Every word from Proto-Celtic mori →