D defs.my
Entry 2 senses Webster, 1913

Acknow

/(ăk*nō")/ · Ac·know · IPA /əkˈnoʊ/
01 v. t. To recognize.
  1. 1.
    To recognize.[Obs.]
  2. 2.
    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.
Phrases & compounds
To be acknown — to acknowledge; to confess.