quaternī ae, a, gen plur. nūm, num distr. quater, four each, by fours, four at a time: quaternos denarios in singulas vini amphoras exegisse: quaternae cohortes ex V legionibus, i. e. four from each legion, Cs.: Saepe tribus lectis videas cenare quaternos, H.: quattuor legionibus quaternūm milium scriptis, L.