Main Entry: ¹quar·rel

Pronunciation: \ˈkwȯr(-ə)l, ˈkwär(-ə)l\

Function: noun

Etymology: Middle English, from Anglo-French, square block of stone, bolt, from Vulgar Latin *quadrellum, diminutive of Latin quadrum square — more at quadrate

Date: 13th century

: a square-headed bolt or arrow especially for a crossbow