Dewi m
A Welsh form (earlier Dewydd) of DAVID (SEE David), traditionally associated with the patron saint of Wales. This form of the given name was little used during the Middle Ages, but during the 20th century it has become quite common in Wales, but rare elsewhere. St Dewi was born in South Wales in the 5th century and became the first bishop of Menevia, the tiny cathedral city now known as St Davids.
First names dictionary. 2012.