Lewis Short
quinquertĭum (noun N) : quinque-ars
* The five sorts of bodily exercises for youth (discus, cursus, saltus, lucta, jaculatio): quinquertium vocabant antiqui, quem Graeci πένταθλον . . . Livius quoque (Andron.) ipsos athletas sic nominat: quinquertiones praeco in medium vocat,Fest. p. 257 Müll.; cf. Paul. ex Fest. p. 256 ib.
Charlton T. Lewis, Charles Short, A Latin Dictionary