penance
From LSJ
ἀπὸ τῶν ὀφθαλμῶν ὑδρορρόαι δύο ῥέουσιν μέλανος → two streams of black run from the eyes
English > Greek (Woodhouse)
substantive
repentance: P. and V. μεταμέλεια, ἡ (Eur., Fragment); see repentance.
do penance for: P. and V. δίκην, or pl., διδόναι (gen.).