The Collaborative International Dictionary of English v.0.48:

Doctorate \Doc"tor*ate\, n. [Cf. F. doctorat.]
   The degree, title, or rank, of a doctor.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Doctorate \Doc"tor*ate\, v. t.
   To make (one) a doctor.
   [1913 Webster]

         He was bred . . . in Oxford and there doctorated. --
                                                  Fuller.
   [1913 Webster]

WordNet (r) 3.0 (2006):

doctorate
    n 1: one of the highest earned academic degrees conferred by a
         university [syn: doctor's degree, doctorate]