umbrate

from The Collaborative International Dictionary of English v.0.48

Umbrate \Um"brate\ ([u^]m"br[=a]t), v. t. [L. umbratus, p. p. of
   umbrare to shade, fr. umbra a shade.]
   To shade; to shadow; to foreshadow. [Obs.]
   [1913 Webster] Umbratic