Lewis & Short

pācĭfer, fēra, fŏrum, adj. [pax-fero], peace-bringing, that makes or announces peace, peaceful, pacific (poet. and postclass.): sermo, Luc. 3, 305: oliva, Verg. A. 8, 116: laurus, Plin. 15, 30, 40, § 133; of the same: virga, Val. Fl. 4, 139.
A frequent epithet of the gods; of Mercury: Cyllenius, Ov. M. 14, 291; so Inscr. Orell. 1411; of Jupiter, Inscr. Gud. 7, 7; of Mars, Inscr. Orell. 1353; of Apollo, Inscr. Grut. 38, 7; of Hercules, ib. 49, 1; 1013, 4; of Minerva, Inscr. Rein. cl. 1, 228; of Genius (perh. of Mercury), Inscr. Orell. 1412: Christus, Tert. adv. Marc. 3, 21.