S / somnĭfĭcus
adjective

somnĭfĭcus

fem. somnĭfĭca · neut. somnĭfĭcum
somnus-facio
causing sleep; narcotic
causing sleep, narcotic (Plinian): crater, Mart. Cap. 1, § 82: medicamentum, Plin. 37, 10, 57, § 158: vis aspidum, id. 24, 4, 17, § 63.