from חֵן; gratis, i.e. devoid of cost, reason or advantage; without a cause (cost, wages), causeless, to cost nothing, free(-ly), innocent, for nothing (nought, in vain.
Strong's 经文汇编（公版）
完整词典条目（Brown-Driver-Briggs）
חִנָּםsubst., used chiefly in the accus. as adv.—lit. out of favour; i.e.
And they shall comfort you, when ye see their way and their doings; and ye shall know that I have not done without cause all that I have done in it, saith the Lord Jehovah.
