
German word Mutter comes from Proto-Indo-European *-tḗr, and later Proto-Germanic *mōdēr (Mother.)
*-tḗr (Proto-Indo-European)
Derives agent nouns from verbs, denoting someone or something whose role or purpose it is to perform the verb's action.
*mh₂tros (Proto-Indo-European)
*mōdēr (Proto-Germanic)
Mother.
muoter (Old High German)
Mother.
Mutter (German)
Mother.