Lewis Short
(adjective) : quintus (old form quinctus, Plaut. Trin. 2, 4, 123), a, um, quinque
* The fifth: quarta invidia, quinta ambitio,Plaut. Pers. 4, 4, 8: locus,Cic. Inv. 1, 53, 102; 1, 55, 107: natura,id. Tusc. 1, 17, 41: quinta pars,quintessence, essence,Hor. C. 1, 13, 16: quinto mense, quinto die,Liv. 31, 7.— Advv.
* Quintum, for the fifth time: declarati consules Q. Fabius Maximus quintum, Q. Fabius Flaccus quartum,Liv. 27, 6; 6, 42; Vell. 1, 14, 6.
* Quintō, for the fifth time: eodem anno lectisternium Romae, quinto post conditam Urbem, habitum est,Liv. 8, 25.
Charlton T. Lewis, Charles Short, A Latin Dictionary