Boy name origins & meanings
- Old English : Valley
- German : Valley dweller
Family name origins & meanings
- Irish : reduced Anglicized form of Gaelic Ó Dálaigh ‘descendant of Dálach’, a personal name based on dál (modern dáil) ‘meeting’, ‘assembly’.
- The main Irish family of this name claims descent from Dálach, tenth in descent from Niall of the Nine Hostages. From the 12th century they became famous as a poet family, and branches spread all over Ireland.