THE FULL ARTICLE — from the International Standard Bible Encyclopedia

The International Standard Bible Encyclopedia (1915), general editor James Orr — public domain, printed whole.

krook'-ed (`awah, `aqash, `aqalqal, `aqallathon, pethaltol; skolios): Primarily designates something that is bent, twisted or deformed (Isa 27:1; 45:2 the King James Version).

Figurative:

(1) It designates a course of action that deviates from rectitude, especially deceit, guile, hypocrisy (De 32:5; Pr 2:15; Ec 1:15; Lu 3:5; compare Php 2:15);

(2) trials (sent by God, Ec 7:13; La 3:9);

(3) difficulties (removed by God, Isa 42:16).