ἀνταποδιδόναι

From LSJ

τὸ ἓν καὶ τὸ ὂν πολλαχῶς λέγεται → the term being and the term one are used in many ways, one and being have various meanings, one and being have many senses

Source

Greek > English (Woodhouse Verbs Reversed)

(see also ἀνταποδίδωμι): give in return, pay back

Lexicon Thucydideum

referre, rependere, to return, repay, 1.43.2,
par pari, tit for tat. 3.40.7. 3.63.4, 3.66.2, 3.67.5, 3.67.6, 4.19.3.