cárthach
Cárthach is an Irish given name, predominantly male. It is derived from the Old Irish word "carthach," meaning "loving" or "worthy of love." The name has a long history in Ireland and is associated with several historical figures, most notably Saint Cárthach (also known as St. Carthage), an Irish saint who lived in the 6th and 7th centuries. He founded a monastery at Rahan in Offaly and later at Lismore in Waterford.
The name Cárthach has seen periods of popularity throughout Irish history. While not as common as some