D defs.my
Entry 4 senses Webster, 1913

Cognizance

/kŏg'nĭzəns/ · Cog·ni·zance · IPA /ˈkɑɡnɪzəns/
01 n. Apprehension by the understanding; perception; observation.
  1. 1.
    Apprehension by the understanding; perception; observation.
    “Within the cognizance and lying under the control of their divine Governor.” Bp. Hurd
  2. 2.
    Recollection; recognition.
    “Who, soon as on that knight his eye did glance, Eftsoones of him had perfect cognizance.” Spenser.
  3. 3.
    Jurisdiction, or the power given by law to hear and decide controversies.(Law) [Eng.]
  4. 4.
    The distinguishing mark worn by an armed knight, usually upon the helmet, and by his retainers and followers: Hence, in general, a badge worn by a retainer or dependent, to indicate the person or party to which he belonged; a token by which a thing may be known.
    “Wearing the liveries and cognizance of their master.” Prescott.
    “This pale and angry rose, As cognizance of my blood-drinking hate.” Shak.