n.
Pronunciation: ' kwo ̇ r(- ə )l, ' kwär(- 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