quart

Từ điển Oxford Advanced Learner 8th

quart [quart quarts] BrE [kwɔːt] NAmE [kwɔːrt] noun (abbr.qt)
a unit for measuring liquids, equal to 2 pints or about 1.14 litres in the UK and Canada, and 0.94 of a litre in the US
Idiom: ↑put a quart into a pint pot

Word Origin:
Middle English: from Old French quarte, from Latin quarta (pars) ‘fourth (part)’, from quartus ‘fourth’, from quattuor ‘four’.