quarrel2 /ˈkwɒr(ə)l 
/ ▸ noun 1 historical a short, heavy, square-headed arrow or bolt used in a crossbow or arbalest. 2 a small, diamond-shaped pane of glass as used in lattice windows. 3 mainly Northern England a square floor tile. – ORIGIN Middle English: from Old French, based on late Latin quadrus ‘square’.
EnglishOxford Dictionary of English
