quindecies

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

quindĕcĭes (-dĕcĭens), adv. [quindecim],

fifteen times : quindeciens sestertium ( neutr. sing. ), fifteen hundred thousand sesterces , Cic. Verr. 2, 2. 25, § 61; Mart. 7, 10, 15.