The Collaborative International Dictionary of English v.0.48:

Origination \O*rig`i*na"tion\, n. [L. originatio.]
   [1913 Webster]
   1. The act or process of bringing or coming into existence;
      first production. "The origination of the universe."
      --Keill.
      [1913 Webster]

            What comes from spirit is a spontaneous origination.
                                                  --Hickok.
      [1913 Webster]

   2. Mode of production, or bringing into being.
      [1913 Webster]

            This eruca is propagated by animal parents, to wit,
            butterflies, after the common origination of all
            caterpillars.                         --Ray.
      [1913 Webster]

WordNet (r) 3.0 (2006):

origination
    n 1: an event that is a beginning; a first part or stage of
         subsequent events [syn: origin, origination,
         inception]
    2: the act of starting something for the first time; introducing
       something new; "she looked forward to her initiation as an
       adult"; "the foundation of a new scientific society" [syn:
       initiation, founding, foundation, institution,
       origination, creation, innovation, introduction,
       instauration]

Moby Thesaurus II by Grady Ward, 1.0:

108 Moby Thesaurus words for "origination":
   A, alpha, artifact, authorship, babyhood, beginning, beginnings,
   birth, blast-off, brainchild, child, childhood, coinage,
   commencement, composition, conception, concoction, contrivance,
   contriving, cradle, creation, creative effort, creature,
   crowning achievement, cutting edge, dawn, derivation, devising,
   distillation, edge, effect, end product, essence, establishment,
   extract, fabrication, flying start, foundation, fresh start,
   freshman year, fruit, generation, genesis, grass roots, handiwork,
   hatching, head, improvisation, inception, inchoation, incipience,
   incipiency, incunabula, infancy, institution, invention, issue,
   jump-off, kick-off, leading edge, making do, manufacture,
   masterpiece, masterwork, mintage, nascence, nascency, nativity,
   new departure, new mintage, offspring, oncoming, onset, opening,
   opera, opus, opuscule, origin, original, outbreak, outcome,
   outgrowth, outset, parturition, pregnancy, product, production,
   provenience, radical, radix, result, rise, root, running start,
   send-off, setting in motion, setting-up, source, square one, start,
   start-off, starting point, stem, stock, take-off, taproot, work,
   youth