The Collaborative International Dictionary of English v.0.48:

Ferous \Fe"rous\, a. [L. ferus. See Fierce.]
   Wild; savage. [R.] --Arthur Wilson.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

-ferous \-fer*ous\ [L. -fer. fr. ferre to bear. See Bear to
   support.]
   A suffix signifying bearing, producing, yielding; as,
   auriferous, yielding gold; chyliferous, producing chyle.
   [1913 Webster]