The Collaborative International Dictionary of English v.0.48:

Poesy \Po"e*sy\, n. [F. po['e]sie (cf. It. poesia), L. poesis,
   from Gr. ?. from ? to make. Cf. Posy.]
   [1913 Webster]
   1. The art of composing poems; poetical skill or faculty; as,
      the heavenly gift of poesy. --Shak.
      [1913 Webster]

   2. Poetry; metrical composition; poems.
      [1913 Webster]

            Music and poesy used to quicken you.  --Shak.
      [1913 Webster]

   3. A short conceit or motto engraved on a ring or other
      thing; a posy. --Bacon.
      [1913 Webster]

WordNet (r) 3.0 (2006):

poesy
    n 1: literature in metrical form [syn: poetry, poesy,
         verse]