The Collaborative International Dictionary of English v.0.48:

Incipient \In*cip"i*ent\, a. [L. incipiens, p. pr. of incipere
   to begin. See Inception.]
   Beginning to be, or to show itself; commencing; initial; as,
   the incipient stage of a fever; incipient light of day. --
   In*cip"i*ent*ly, adv.
   [1913 Webster]