The Collaborative International Dictionary of English v.0.48:

Originally \O*rig"i*nal*ly\, adv.
   1. In the original time, or in an original manner; primarily;
      from the beginning or origin; not by derivation, or
      imitation.
      [1913 Webster]

            God is originally holy in himself.    --Bp. Pearson.
      [1913 Webster]

   2. At first; at the origin; at the time of formation or
      costruction; as, a book originally written by another
      hand. "Originally a half length [portrait]." --Walpole.
      [1913 Webster]

WordNet (r) 3.0 (2006):

originally
    adv 1: in an original manner
    2: with reference to the origin or beginning [syn:
       primitively, originally, in the beginning]
    3: before now; "why didn't you tell me in the first place?"
       [syn: in the first place, earlier, in the beginning,
       to begin with, originally]

Moby Thesaurus II by Grady Ward, 1.0:

30 Moby Thesaurus words for "originally":
   ab initio, ab ovo, aborigine, at first, at the start,
   before everything, by birth, by nature, chiefly, congenitally,
   first, first and foremost, first thing, firstly,
   from the beginning, genetically, immanently, in the beginning,
   initially, innately, internally, intrinsically, inwardly, mainly,
   naturally, primally, primarily, primitively, primo, principally