Definition of Geoffrey of Monmouth in US English:

Geoffrey of Monmouth

proper noun

  • (c.1100–c.54), Welsh chronicler. His Historia Regum Britanniae (c.1139; first printed in 1508), an account of the kings of Britain, was a major source for English literature, especially for the tales of King Arthur.

Pronunciation

Geoffrey of Monmouth

/ˌjefrē əv ˈmänməTH/