Source : Webster's Revised Unabridged Dictionary (1913)

Soilure \Soil"ure\, n. [OF. soillure, F. souillure. See {Soil}
   to make dirty.]
   Stain; pollution. --Shak.

         Then fearing rust or soilure, fashioned for it A case
         of silk.                                 --Tennyson.

Source : WordNet®

soilure
     n : the act of soiling something [syn: {soiling}, {dirtying}]