Strongs: H6121
H6121 @ עקב ‛âqôb aw-kobe' From H6117 in the original {sense} a knoll (as swelling up); in the denominative sense (transitively) fraudulent or (intransitively) tracked: - {crooked} {deceitful} polluted.
Isaiah:40:4
Jeremiah:17:9
Hosea:6:8