indicate the level to which a name has been verified.
Meaning & History
Directly taken from Welsh gwenonwy "lily of the valley". In local folklore this was the name of King Arthur's sister; Maen Gwenonwy, a large rock off Porth Cadlan in Gwynedd, Wales, is named for her.
As a given name, Gwenonwy has occasionally been found from the late 19th century onwards.
As a given name, Gwenonwy has occasionally been found from the late 19th century onwards.