concubitor
From LSJ
ἢ λέγε τι σιγῆς κρεῖττον ἢ σιγὴν ἔχε → either say something better than silence or keep silence (Menander)
Latin > English (Lewis & Short)
concŭbĭtor: ōris, m. id.,
I a bed-fellow ( = concubinus; concubitor, συγκοιμητής>, Gloss.; eccl. Lat.), Salv. 7, p. 251; Vulg. 1. Cor. 6, 10.
