Source : Webster's Revised Unabridged Dictionary (1913)

Umbratic \Um*brat"ic\, Umbratical \Um*brat"ic*al\, a. [L.
   umbraticus, from umbra shade. See {Umbrage}.]
   Of or pertaining to the shade or darkness; shadowy; unreal;
   secluded; retired. [R.] --B. Jonson.