ندم1 نَدِمَ عَلَى مَا فَعَلَ He grieved for what he had done; regretted it; repented of it: or he disliked it. (Msb.) نَدِيمٌ A companion in drinking; a cup-companion. (S, Msb, K.) And hence, Any convivial companion; a boon-companion.مَنْدَمٌ Repentance: an inf. n. of نَدِمَ; see an ex. in a verse of El-Kattál El-Kilábee, cited voce أَىٌّ.