Boy name origins & meanings
- Scottish : Dark
Family name origins & meanings
- Irish : reduced Anglicized form of Gaelic Ó Dubhthaigh ‘descendant of Dubhthach’, a byname derived from dubh ‘black’ (see Duff). This name was borne by a 6th-century saint who was archbishop of Armagh.
- Scottish and Irish : reduced Anglicized form of Gaelic Mac Dhuibhshíthe ‘son of Duibhshíth’, a personal name composed of the elements dubh ‘black’ (see Duff) + síth ‘peace’.