donatus

noun

1. early-4th-century bishop of Casae Nigrae in northern Africa: leader of a heretical Christian group.Compare Donatist.
2. Aelius.4th century a.d., Roman grammarian.

noun

1. Auelius (ˈiːlɪəs). 4th century ad, Latin grammarian, who taught Saint Jerome; his textbook Ars Grammatica was used throughout the Middle Ages
2. 4th century ad, bishop of Carthage; leader of the Donatists, a heretical Christian sect originating in N Africa in 311 a.d