Probably first used in J. M. Barrie's play 'Peter Pan' in 1904.
It was from the nickname fwendy "friend", given to the author by a
young friend. However, there is some evidence that the name may
have been used prior to the play, in which case it could be related
to the Welsh name GWENDOLEN or other names beginning with element
gwen meaning "white, fair, blessed".
