OXFORD DICTIONARY
Repent, v.
1 intr. (often foll. by of) feel deep sorrow about one's actions etc.
2 tr. (also absol.) wish one had not done, regret (one's wrong, omission, etc.); resolve not to continue (a wrongdoing etc.).
3 refl. (often foll. by of) archaic feel regret or penitence about (now I repent me).
repentance n. repentant adj. repenter n.
Repent, adj. Bot. creeping, esp. growing along the ground or just under the surface.
L repere creep
ROGET THESAURUS
Repent
Regret
VB
regret, deplore, bewail, repine, cast a longing lingering look behind, rue, rue the day, repent, infandum renovare dolorem, prey on the mind, weigh on the mind, have a weight on the mind, leave an aching void.
Penitence
VB
repent, be sorry for, be penitent, rue, regret, think better of, recant, knock under, plead guilty, sing miserere, sing de profundis, cry peccavi, own oneself in the wrong, acknowledge, confess, (disclose), humble oneself, beg pardon, turn over a new leaf, put on the new man, turn from sin, reclaim, repent in sackcloth and ashes, (do penance), learn by experience.