Acknow \Ac*know"\, v. t. [Pref. a- + know; AS. oncn[=a]wan.] 1. To recognize. [Obs.] ``You will not be acknown, sir.'' --B. Jonson. 2. To acknowledge; to confess. [Obs.] --Chaucer. {To be acknown} (often with of or on), to acknowledge; to confess. [Obs.] We say of a stubborn body that standeth still in the denying of his fault, This man will not acknowledge his fault, or, He will not be acknown of his fault. --Sir T. More.