[re.morse] n [ME, fr. MF remors, fr. ML remorsus, fr. LL, act of biting again, fr. L remordere to bite again, fr. re- + mordere to bite--more at mordant] (14c) 1: a gnawing distress arising from a sense of guilt for past wrongs: self-reproach
2. obs: compassion syn see penitence