Toponymy
The village's Irish-language name Luach Maigh (earlier: Luach-mhagh) means "reward-field". 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.
Why certain localities in Ireland were given this name is probably accounted for by the circumstance that "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". However, a local tradition explains that in this particular case the name alludes to the manner in which the Purcells first gained proprietorship of area. Legend has it that a king lived in the Castle, and offered his daughters hand to whomsoever could rid the land of a boar and sow of "gigantic size" who uprooted crops and killed whoever they came into contact with. A youth named Purcell killed the boar with a bow and arrow and thus the area in which the Castle stands is known as "the field of the reward". The legend is alluded to in the Purcell family's coat of arms, which depicts the heads of four boars.
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