Derryginny is a townland in the Parish of Tomregan, Barony of Tullyhaw, County Cavan, Ireland. Etymology The townland name is an anglicisation of the Gaelic placename "Doire Goinimhe" which means the 'Oakwood of the Sand', which possibly derives either from the sandbanks which form along the rivers running through it or from the large quarry on its northwest boundary. The 1609 Ulster Plantation Baronial map spells the name as Dirrigonie. A 1610 grant spells it as Dirregenny. The Irish State Papers for 1610 spell it as Diroginy. A 1630 Inquisition spells it as Derrogeny.The 1652 Commonwealth Survey spells it as Direganny. The 1659 Down Survey map spells it as Derygenny. The 1663 Hearth Money Rolls spell it as Dirigny. A 1666 grant spells it Derrogenny alias Derrygenny. William Petty's 1685 map spells it as Deregeny. The 1790 Cavan Carvaghs list spells the name as Dirreginny. Geography It is bounded on the north by Doon, Tomregan and Gortoorlan townlands, on the west by Snugborough and Carrowmore, County Cavan townlands, on the south by Lecharrownahone townland and on the east by Annagh, County Cavan, Agharaskilly and Cullyleenan townlands. Its chief geographical features are the Shannon-Erne Waterway which flows north along its eastern boundary, the Crooked River (Ireland), another small stream falling from Slieve Rushen which exits into the canal beside Ballyconnell Bridge and a central drumlin hill of blue sandy clay which rises over 200 feet above sea level. Derryginny is traversed by Church Street, Bridge Street, the N87 road (Ireland), the R205 road (Ireland), Derryginny lane, Carrowmore lane and by the disused Cavan & Leitrim Railway. The townland covers 126 statute acres, including three acres of water. History The earliest surviving reference to the townland is in an account of the death of the Ulster hero Conall Cernach, who was killed c.1 AD, when he attempted to cross the ford called Ath na Mianna from the townland of Cullyleenan over the Woodford River to the opposite townland of Derryginny. In the fifth century AD, the townland formed part of the lands owned by the Masraige clan. From medieval times until 1606, the townland formed part of the lands owned by the McGovern (name) clan. Richard Tyrrell of Tyrrellspass, County Westmeath, purchased the townland c.1606 from Cormack McGovern, who was probably the son of Tomas Óg mac Brian Mág Samhradháin, who reigned as chief of the McGovern clan from 1584. A schedule,