This refers to the name of a person:
name
Ruan Major (EN) / Ruwon Veur (KW)
Type:
Parish:
Hundred:
Elements notes:
Ruwon personal name + veur 'great, major'
Historic forms:
Sanctus Romonus 1208, Rumon le greinder c1250, Sanctus Rumonius 1291, 1317, Sanctus Rumonus 1303, Sanctus Rumonus Magnus 1328, 1423, Sanctus Romonus 1398, St Ryvan alias St Rewan 1578.