Carthage English - Male The anglicized form of the Irish Carthach, which is a variant of Caradoc. The Irish St. Carthach, also known as St Carthage, founded an early 7th century monastery at Lismore, County Waterford. Rated 1 out of 4 stars ★ ★ ★ ★ Rating: 1.00 (2 votes) Add to favorites