Source : Webster's Revised Unabridged Dictionary (1913)

Ween \Ween\, v. i. [OE. wenen, AS. w?nan, fr. w?n hope,
   expectation, opinion; akin to D. waan, OFries. w?n, OS. &
   OHG. w[=a]n, G. wahn delusion, Icel. v[=a]n hope,
   expectation, Goth. w?ns, and D. wanen to fancy, G. w["a]hnen,
   Icel. v[=a]na to hope, Goth. w?njan, and perhaps to E.
   winsome, wish.]
   To think; to imagine; to fancy. [Obs. or Poetic] --Spenser.
   Milton.

         I have lost more than thou wenest.       --Chaucer.

         For well I ween, Never before in the bowers of light
         Had the form of an earthly fay been seen. --J. R.
                                                  Drake.

         Though never a dream the roses sent Of science or
         love's compliment, I ween they smelt as sweet. --Mrs.
                                                  Browning.