Dyfri

Dyfri has two possible origins: either it is a form of Dyfrig, an early British saint known in Latin as Dubricius and in French as Devereux... or it is a back-formation from the town name Llanymddyfri, meaning "church enclosure between the waters".

The best-known bearer is the British archaeologist Dyfri Williams.

Pronounced DUH-free.