Type Word Usage Old Irish Meaning & History Old Irish word meaning "water, stream". Related ItemsDetails Given Name DescendantsDouglas, Douglass(English) Douglas(Scottish) Dùbhghlas(Scottish Gaelic) Surname DescendantsDouglas, Douglass(Scottish) Dùbhghlas(Scottish Gaelic) Place Name DescendantsDouglas(Scottish) Dùbhghlas(Scottish Gaelic)