fontānus, a, um, adj. [fons], of or from a spring or fountain, spring-.
I Adj. : aqua, Cels. 2, 18; Col. 12, 9, 2: ora, Ov. F. 1, 269.—
II Subst., in late Lat.: fontāna , ae, f., a spring , fountain , Innocent. de Cas. p. 245 Goes.
fontānus adj. fons, of a spring, from a fountain, spring- : ora, O.: numina, O. ...
An Elementary Latin Dictionary