ἀντοφείλειν

From LSJ

ἤ με φίλει καθαρὸν θέμενος νόον, ἤ μ' ἀποειπών ἐχθαιρ' ἀμφαδίην νεῖκος ἀειράμενοςeither love me with a pure heart, or reject and hate me, and openly pick a fight

Source

Greek > English (Woodhouse Verbs Reversed)

(see also: ἀντοφείλω) owe in return

Lexicon Thucydideum

accepti beneficii gratiam debere, to owe thanks for a favor received, 2.40.4.