In the case of the character from J. M. Barrie's play Peter Pan (1904), it was created from the nickname fwendy "friend", given to the author by a young friend. However, the name was used prior to the play (rarely), in which case it could be related to the Welsh name Gwendolen and other names beginning with the element gwen meaning "white, fair, blessed". The name only became common after Barrie's play ran.
We use a combination of data from the internet, and our own Machine Learning models to make these predictions.
In a gist, we use a Machine Learning model trained on a diverse global dataset of 100m+ names, and use it to predict different traits for a person based on first name!
NameGuessr guesses a person's nationality, age, and gender based on their name. We also try to give insightful info around the name's origin, name meaning, and name pronounciation.