Lewis Short
(adjective) : fertus, a, um, fero; cf. fertilis
* Fertile, productive: pini,Avien. Or. Mar. 556; id. Descr. Orb. 1205. (In Cic. Or. 49, 163, and Lucr. 6, 258, recent edd. read effertus, ex. conj. Lachm.)
Charlton T. Lewis, Charles Short, A Latin Dictionary