wiseness

From Middle English wisnesse, from Old English wīsnes (“teaching, wisdom”), equivalent to wise +‎ -ness.

wiseness (usually uncountable, plural wisenesses)

1. The state, quality, or measure of being wise; wisdom.
   • c. 1599–1602 (date written), William Shakespeare, “The Tragedie of Hamlet, Prince of Denmarke”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, (please specify the act number in uppercase Roman numerals, and the scene number in lowercase Roman numerals):

     Yet have I something in me dangerous,
     Which let thy wiseness fear.