ἀρχαϊκῶς
From LSJ
Οὐκ ἔστιν ἀγαθὸν ἐν ἀνθρώπῳ ὃ φάγεται καὶ ὃ πίεται καὶ ὃ δείξει τῇ ψυχῇ αὐτοῦ ἀγαθὸν ἐν μόχθῳ αὐτοῦ (Ecclesiastes 2:24, LXX version) → What is good in a human is not what he eats and drinks and shows off to his soul as a benefit of his labor
French (Bailly abrégé)
adv.
à la manière antique, à l'ancienne mode.
Étymologie: ἀρχαϊκός.
Russian (Dvoretsky)
ἀρχᾱϊκῶς: по-старинному, на старинный лад Arst. etc.