ματαιόω

English (LSJ)

   A bring to naught, Sch.S.Tr.258, Gloss.    2 ματαιοῦσιν ἑαυτοῖς ὅρασιν invent a vision of their own, LXX Je.23.16.    II more freq. in Pass., to be brought to naught, οὐ ματαιωθήσεται τὰ ῥήματα ib.Ju.6.4.    2 become foolish, act foolishly, ἐματαιώθην σφόδρα ib.1 Ch.21.8, cf. Ep.Rom.1.21; μεματαίωταί σοι thou hast done foolishly, LXX 1 Ki.13.13.

Greek (Liddell-Scott)

ματαιόω: ἴδε ματαιόομαι.

English (Strong)

from μάταιος; to render (passively, become) foolish, i.e. (morally) wicked or (specially), idolatrous: become vain.

English (Thayer)

(μάταιος); 1st aorist passive ἐματαιώθην; to make empty, vain, foolish: ἐματαιώθησαν ἐν τοῖς διαλογισμοῖς αὐτῶν, were brought to folly in their thoughts, i. e. fell into error, 1 Chronicles 21:8; (etc.); nowhere in Greek authors.)