Strong's #6121: `aqob (pronounced aw-kobe')

from 6117; in the original sense, a knoll (as swelling up); in the denominative sense (transitive) fraudulent or (intransitive) tracked:--crooked, deceitful, polluted.

Brown-Driver-Briggs Hebrew Lexicon:

‛âqôb

1) deceitful, sly, insidious

1a) deceitful, sly, insidious, slippery

1b) foot-tracked

2) steep, hilly

Part of Speech: adjective

Relation: from H6117

Usage:

This word is used 3 times:

 

Isaiah 40:4: "mountain and hill shall be made low: and the crooked shall be made straight, and the rough places plain:"
Jeremiah 17:9: "The heart is deceitful above all things, and desperately wicked: who can know"
Hosea 6:8: "is a city of them that work iniquity, and is polluted with blood."