quintal

quintal, a nonstandard metric unit of mass equivalent to exactly 100 kg; quintal, French hundredweight, a traditional unit of mass equivalent to about 49.95 kg

Inherited from Old French quintal, from Medieval Latin quintāle (“various medieval hundredweights”), from Arabic قِنْطَار (qinṭār, “100 rottols”), from Classical Syriac ܩܰܢܛܺܝܪܳܐ (qanṭīrā) and ܩܰܢܛܺܝܢܳܪܳܐ (qanṭīnārā), from Byzantine Greek κεντηνάριον (kentēnárion), from Latin centēnārium (“100 Roman pounds”), from centēnī (“100 things”) + -ārius (“-ary”, forming related adjective). Doublet of centenaire.