Remord

[Lat. remordere, remorsum, to bite again or back, to torment, from re, again, back, and mordere, to bite, vex; Fr. & Pr. remordre, Sp. & Pg. remorder, It. rimordere.] To excite to remorse; to rebuke. [Obs.] Skelton.

To feel remorse. [Obs.] Elyot.