Type Word Usage Old Irish Meaning & History Old Irish word meaning "red" [1]. Related ItemsFamily Tree·Details Given Name DescendantsRoy(Dutch) Rorie, Rory, Roy, Ormond, Ormonde(English) Rory, Ruaidhrí, Ruairí(Irish) Ruadh(Medieval Irish) Ruadh(Medieval Scottish) Ruaidrí(Old Irish) Roderick, Rory, Roy(Scottish) Ruairi, Ruairidh, Ruaraidh, Ruaridh(Scottish Gaelic) Surname DescendantsMacGrory, Mac Ruaidhrí, McCreery, McCrory, Orman, Ormond, Ormonde, Ó Ruaidh(Irish) MacGrory, McCreery, McCrory(Scottish) MacRuaraidh(Scottish Gaelic) Sources & References Matasović, Ranko. Etymological Dictionary of Proto-Celtic. Brill, 2009, page 315.