ἀσυνετίζομαι
From LSJ
τὸ δ' ἡδέως ζῆν καὶ ἱλαρῶς οὐκ ἔξωθέν ἐστιν, ἀλλὰ τοὐναντίον ὁ ἄνθρωπος τοῖς περὶ αὑτὸν πράγμασιν ἡδονὴν καὶ χάριν ὥσπερ ἐκ πηγῆς τοῦ ἤθους προστίθησιν → but a pleasant and happy life comes not from external things, but, on the contrary, man draws on his own character as a source from which to add the element of pleasure and joy to the things which surround him
English (LSJ)
= ἀσυνετέω (be without understanding, fail to understand), Aq. Je. 10.8.
Spanish (DGE)
no comprender, ἅπαξ ἀσυνετισθήσονται καὶ ἀνοητισθήσονται Aq.Ie.10.8.