 Today's "Loughmore" – which would correspond to Irish "Loch Mór" ("great lake") – is the result of a mistake by British mapmakers of the 19th century.The Purcell family's Loughmoe Castle, near the village, retains a more accurate and older version of the name.Certain localities in Ireland were given this name, probably because "in old times some tenant held them free of direct rent, as a reward for some signal service, or on condition of fulfilling some special duty".