Strong’s Hebrew
H6280 — `athar
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
עָתַר
`athar — pronounced aw-thar
a primitive root; to be (causatively, make) abundant:--deceitful, multiply.
2 occurrences in the KJV.
Proverbs 27:6
Faithful are the wounds of a friend; but the kisses of an enemy are deceitful.
Ezekiel 35:13
Thus with your mouth ye have boasted against me, and have multiplied your words against me: I have heard them.