lunch ‧ eon /ˈlʌntʃ ə n/ BrE AmE noun [uncountable and countable]
[ Date: 1600-1700 ; Origin: luncheon 'large piece' (15-19 centuries) , from lunch 'piece (of food)' (16-18 centuries) , probably from lump ]
formal lunch
lunch ‧ eon /ˈlʌntʃ ə n/ BrE AmE noun [uncountable and countable]
[ Date: 1600-1700 ; Origin: luncheon 'large piece' (15-19 centuries) , from lunch 'piece (of food)' (16-18 centuries) , probably from lump ]
formal lunch
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012