μεταμέλ-ομαι · metamel-omai — LSJ
feel repentance, regret
feel repentance, regret:—Constr.:
1 they repented that
c. part., μετεμέλοντο οὐ δεξάμενοι they repented that they had not . . , Th. 4.27, cf. 7.50; μ. ὅτι . . Id. 5.14; ὁ μεταμελόμενος Arist. EN 1110b23.
2 repent at
μεταμέλεσθαί τινι repent at a thing, D.S. 15.9; ἐπί τινι Id. 19.75; τινων Phalar. Ep. 43.
3 change oneʼs purpose, line of conduct
abs., change oneʼs purpose or line of conduct, X. Cyr. 4.6.5, Plb. 4.50.6.
II that which will cause regret, matter for future repentance
causal in fut. part., τὸ μεταμελησόμενον that which will cause regret, matter for future repentance, X. Mem. 2.6.23.
III
= μεταμέλει I.1, μεταμέλεσθαι αὐτοῖς περὶ ὧν ἂν συμβουλεύσωνται Pl. Demod. 382d.:—the form μεταμελέομαι, censured by Thom.Mag. p.123R., occurs in Hp. Ep. 27.