ἀντοφείλειν
From LSJ
Μὴ φεῦγ' ἑταῖρον ἐν κακοῖσι κείμενον → Ne fuge sodalem, cum calamitas ingruit → Lass einen Freund in Schwierigkeiten nicht im Stich
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.