G3154 Greek

ματαιόω

mataióō
to render (passively, become) foolish, i.e. (morally) wicked or (specially), idolatrous

KJV Translations of G3154

become vain

Word Origin & Derivation

from G3152 (μάταιος);

G3152 μάταιος (mátaios)

empty, i.e. (literally) profitless, or (specially), an idol

G3154 in the King James Bible

1 verse
Romans 1:21 ἐματαιώθησαν

Because that, when they knew God, they glorified him not as God, neither were thankful; but became vain in their imaginations, and their foolish heart was darkened.