ἀνταλλά-σσω,
Attic dialect ἀνταλλάττω, exchange one thing with another, δάκρυα δ᾽ ἀνταλλάσσετε τοῖς τῆσδε μέλεσι[[ 5th c.BC: Euripides Tragicus “Troades” 351] Refs 5th c.BC+]; τὴν ἀξίωσιν τῶν ὀνομάτων ἐς τὰ ἔργα ἀ. they changed the signification of the names in relation to things, [[ 5th c.BC: Thucydides Historicus 3.82; τὴν ψυχὴν τοῦ χρυσίου 2nd c.AD(?): Pollianus Epigrammaticus 3.113. ] Refs 5th c.BC+]
__II more frequently in middle, take in exchange, ἄνδρα[[ 4th-5th c.BC: Aeschylus Tragicus “Choephori” 133] Refs 4th c.BC+]; ἀνταλλάσσεσθαί τί τινος take one thing in exchange for another, [[ 5th c.BC: Euripides Tragicus “Helena” 1088, etc.; τι ἀντί τινος 4th c.BC: Demosthenes Orator 16.5] Refs 5th c.BC+]; ἀνταλλάσσεσθαι τῇ διανοίᾳ interchange in thought, [[ 5th-6th c.BC: Plato Philosophus “Theaetetus” 189c] Refs 5th c.BC+]; θάνατον ἀνταλλάξεται shall receive death in exchange, i.e. as a punishment, [[ 5th c.BC: Euripides Tragicus “Phoenissae” 1633:] Refs 5th c.BC+] —so in passive, ἀντηλλαγμένου τοῦ ἑκατέρων τρόπου having made an interchange of each other's custom, i.e. having each adopted the way of the other, [[ 5th c.BC: Thucydides Historicus 4.14. ] Refs 5th c.BC+]
__II.2 give in exchange, μηδεμιᾶς χάριτος μηδ᾽ ὠφελίας τὴν εἰς τοὺς Ἕλληνας εὔνοιαν[[ 4th c.BC: Demosthenes Orator 6.10.] Refs 4th c.BC+]