 Variations of the Welsh form are "ap Rhiddid", meaning "son of Rhiddid", or even "ap Redith", which means "son of Redith", a short form of Meredith.If so it has its roots in the personal name Maredudd, of which the Old Welsh form is Morgetiud, of which the first element may mean "pomp" or "splendor" and the second, "iudd", meaning "lord".That being the case, Priddy may mean or imply "son of splendid lord" or simply "son of lord."