Source : Webster's Revised Unabridged Dictionary (1913)

Empurple \Em*pur"ple\, v. t. [imp. & p. p. {Empurpled}; p. pr. &
   vb. n. {Empurpling}.] [Pref. em- + purple. Cf. {Impurple}.]
   To tinge or dye of a purple color; to color with purple; to
   impurple. ``The deep empurpled ran.'' --Philips.

Source : WordNet®

empurple
     v : color purple [syn: {purple}, {purpurate}]