עָקֹב ʻâqôb (H6121)

(transitive) fraudulent or (intransitive) tracked

1) deceitful, sly, insidious 1a) deceitful, sly, insidious, slippery 1b) foot-tracked 2) steep, hilly

from עָקַב (H6117); in the original sense, a knoll (as swelling up); in the denominative sense