Strong's #5558: celeph (pronounced seh'-lef)
from 5557; distortion, i.e. (figuratively) viciousness:--perverseness.
Brown-Driver-Briggs Hebrew Lexicon:
seleph
1) crookedness, perverseness, crooked dealing
Part of Speech: noun masculine
Relation: from H5557
Usage:
This word is used 2 times:
Proverbs 11:3: "The integrity of the upright shall guide them: but the perverseness of transgressors shall destroy"
Proverbs 15:4: "tongue is a tree of life: but perverseness therein is a breach in the spirit."