sentences:  Morris ("Ó Muiris" in Irish) was introduced to Ireland by the Normans, along with the variant Fitzmaurice ("Mac Muiris").A branch of these Morrises moved to Galway in 1485 CE and later became one of the Tribes of Galway.The name may also have been an abbreviation of Morrissey ("Ó Muireasa"), a branch of the Uí Fiachrach clan.