The Collaborative International Dictionary of English v.0.48:

Suffuse \Suf*fuse"\, v. t. [imp. & p. p. Suffused; p. pr. &
   vb. n. Suffusing.] [L. suffusus, p. p. of suffundere to
   overspread; sub under + fundere to pour. See Fuse to melt.]
   To overspread, as with a fluid or tincture; to fill or cover,
   as with something fluid; as, eyes suffused with tears; cheeks
   suffused with blushes.
   [1913 Webster]

         When purple light shall next suffuse the skies. --Pope.
   [1913 Webster]