Coarb
A coarb, from the Old Irish comarbae (Modern Irish comharba), meaning "heir" or "successor", was a distinctive office of the later medieval church among the Gaels of Ireland and Scotland. In this period coarb appears interchangeable with "erenach", denoting the episcopally nominated lay guardian of a parish church and headman of the family in hereditary occupation of church lands. The coarb, however, often had charge of a church which had held comparatively high rank in pre‐Norman Ireland, or one still possessed of relatively extensive termon lands.