Lewis Short
quŏtēni, ae, a
* Num. distrib. adj. [quot], how many (class.): is ita partes fecit, nescio quotenorum jugerum,Cic. Att. 12, 33, 1: quotenos suae aetatis annos Christus absolverit, Ven. Carm. 6, 5.
Charlton T. Lewis, Charles Short, A Latin Dictionary