lough

noun
\ ˈläk , ˈläḵ \

Definition of lough 

1 chiefly Irish : lake

2 chiefly Irish : a bay or inlet of the sea

First Known Use of lough

14th century, in the meaning defined at sense 1

History and Etymology for lough

Middle English, of Celt origin; akin to Old Irish loch lake; akin to Latin lacus lake — more at lake

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The first known use of lough was in the 14th century

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