Main Entry: for·ty

Pronunciation: \ˈfȯr-tē\

Function: noun

Inflected Form(s): plural forties

Etymology: Middle English fourty, adjective, from Old English fēowertig, from fēowertig group of 40, from fēower four + -tig group of 10; akin to Old English tīen ten

Date: before 12th century

1 — see number table
2 plural : the numbers 40 to 49; specifically : the years 40 to 49 in a lifetime or century
3 : the third point scored by a side in a game of tennis

— for·ti·eth \ˈfȯr-tē-əth\ adjective or noun

— forty adjective

— forty pronoun, plural in construction

— for·ty·ish \-tē-ish\ adjective