ματαιόομαι
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
Greek (Liddell-Scott)
μᾰταιόομαι: Παθ., ἀπατῶμαι, Μελέτ. ἐν. Ἀνεκ. Ὀξων. τ. 3. σ. 5· μεματαίωταί σοι, ἔχεις πράξει ἀνοήτως, Ἑβδ. (Α΄ Σαμ. ΙΓ΄, 13)· ― οὐσιαστ. ματαίωσις, εως, ἡ, Ἀθανάσ. τ. 1, σ. 1041Α.
Russian (Dvoretsky)
ματαιόομαι: становиться суетным (ἔν τινι NT).
