make (of none effect, of no reputation, void), be in vain

Strong’s Dictionary of Greek Words:

Number:
2758 (find all occurrences in KJV Bible)
Greek:
κενόω
Transliteration:
kenoo
Phonic:
ken-o’-o
Meaning:
from 2756; to make empty, i.e. (figuratively) to abase, neutralize, falsify
KJV Usage:
make (of none effect, of no reputation, void), be in vain