misconceive

Etymology
From, equivalent to.

Verb

 * 1) To misunderstand.
 * 2) * 1694, William Congreve, The Double-Dealer
 * Nay, misconceive me not, madam, when I say I have had a gen'rous and a faithful passion, which you had never favoured, but through revenge and policy.
 * 1) To judge or plan badly, typically on the basis of faulty misunderstanding.