Source : Webster's Revised Unabridged Dictionary (1913)

Figment \Fig"ment\, n. [L. figmentum, fr. fingere to form,
   shape, invent, feign. See {Feign}.]
   An invention; a fiction; something feigned or imagined.

         Social figments, feints, and formalism.  --Mrs.
                                                  Browning.

         It carried rather an appearance of figment and
         invention . . . than of truth and reality. --Woodward.

Source : WordNet®

figment
     n : a contrived or fantastic idea; "a figment of the
         imagination"