Quaternio, ônis, m. gen. A cater in dice playing, a quier with foure sheetes.
Lewis and Short: Latin dictionary
quăternĭo, ōnis, m. [quaterni], the number four, a quaternion, Mart. Cap. 7, 767.— Esp., B. On dice, a quatre (postclass.), Isid. 18, 65.— C.A body of four soldiers, a quaternion, Vulg. Act. 12, 4.