Source : Webster's Revised Unabridged Dictionary (1913)

Adscititious \Ad`sci*ti"tious\, a. [L. adscitus, p. p. of
   adsciscere, asciscere, to take knowingly; ad + sciscere to
   seek to know, approve, scire to know.]
   Supplemental; additional; adventitious; ascititious.
   ``Adscititious evidence.'' --Bowring. --
   {Ad`sci*ti"tious*ly}, adv.

Source : WordNet®

adscititious
     adj 1: added or derived from something outside; not inherent; "an
            adscititious habit rather than an inherent taste"
     2: added to supplement; "adscititious remarks"