συγκοιμητής
From LSJ
Μεγάλοι δὲ λόγοι μεγάλας πληγὰς τῶν ὑπεραύχων ἀποτίσαντες γήρᾳ τὸ φρονεῖν ἐδίδαξαν → The great words of the arrogant pay the penalty by suffering great blows, and teach one to reason in old age
English (LSJ)
οῦ, ὁ,
A bedfellow, Hsch. s.v. ἐπευνακταί.
German (Pape)
[Seite 968] ὁ, der Beischläfer, Sp.