quinquagiens

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

quinquāgĭens, adv. [quinquaginta],

fifty times : dimicare, Plin. 7, 25, 25, § 92: centena milia, id. 6, 9, 10, § 27: perfricare, Cels. 2, 14.