Source : Webster's Revised Unabridged Dictionary (1913)

Obnubilate \Ob*nu"bi*late\, v. t. [L. obnubilatus, p. p. of
   obnubilare to obscure. See {Ob-}, and {Nubilate}.]
   To cloud; to obscure. [Obs.] --Burton. -- {Ob*nu"bi*la"tion},
   n. [Obs.] --Beddoes.

Source : WordNet®

obnubilate
     v 1: make less visible or unclear; "The stars are obscured by the
          clouds" [syn: {obscure}, {befog}, {becloud}, {haze over},
           {fog}, {cloud}, {mist}]
     2: make unclear, indistinct, or blurred; "Her remarks confused
        the debate"; "Their words obnubilate their intentions"
        [syn: {confuse}, {blur}, {obscure}]