ŏrexis, is, f., = ὄρεξις,
a longing , appetite (post-Aug.): rabidam facturus orexim, Juv. 6, 428: hinc surgit orexis, id. 11, 127: orexin, Lampr. Elag. 29 fin.
orexis is, f , ὄρεξις, a longing, appetite, Iu. ...
An Elementary Latin Dictionary