reltext / Greek lexicon

G3154

ματαιόω

mataioōG:V

to make futile

ματαιόω, -ῶ (μάταιος), [in LXX: 4Ki.17:15, Jer.2:5, al. הָבַל, etc. ;] to make vain, foolish: Rom.1:21.† (AS)

The KJV translates G3154 in the following manner:

vain (2x)

Full Thayer's lexicon entry

ματαιόω — mataióō

ματαιόω: (μάταιος); 1 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, Rom 1:21. (2Ki 17:15; Jer 2:5; 1Ch 21:8; (etc.); nowhere in Greek authors.)

1 occurrence