The Collaborative International Dictionary of English v.0.48:

Becloud \Be*cloud"\, v. t. [imp. & p. p. Beclouded; p. pr. &
   vb. n. Beclouding.]
   To cause obscurity or dimness to; to dim; to cloud.
   [1913 Webster]

         If thou becloud the sunshine of thine eye. --Quarles.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

53 Moby Thesaurus words for "beclouded":
   abstruse, addlebrained, addled, addleheaded, addlepated, befuddled,
   blind, buried, close, clouded, cloudy, concealed, covered, covert,
   eclipsed, fogged, foggy, fuddlebrained, fuddled, hazy, hid, hidden,
   in a cloud, in a fog, in a muddle, in eclipse, in purdah,
   in the wings, incommunicado, latent, misted, misty, muddled,
   muddleheaded, muzzy, mysterious, obfuscated, obscure, obscured,
   occult, puzzleheaded, recondite, secluded, secluse, secret,
   sequestered, under an eclipse, under cover, under house arrest,
   under wraps, underground, unknown, wrapped in clouds