'Feign' in the Bible

And Joab sent to Tekoah, and fetched thence a wise woman, and said unto her, I pray thee, feign thyself to be a mourner, and put on now mourning apparel, and anoint not thyself with oil, but be as a woman that had a long time mourned for the dead:

And the LORD said unto Ahijah, Behold, the wife of Jeroboam cometh to ask a thing of thee for her son; for he is sick: thus and thus shalt thou say unto her: for it shall be, when she cometh in, that she shall feign herself to be another woman.