Source : Webster's Revised Unabridged Dictionary (1913)

Becloud \Be*cloud"\, v. t. [imp. & p. p. {Beclouded}; p. pr. &
   vb. n. {Beclouding}.]
   To cause obscurity or dimness to; to dim; to cloud.

         If thou becloud the sunshine of thine eye. --Quarles.