To make so confused or opaque as to be difficult to perceive or understand: "A great effort was made . . . to obscure or obfuscate the truth"(Robert Conquest).
To render indistinct or dim; darken: The fog obfuscated the shore.
[Latin obfuscāre, obfuscāt-, to darken : ob-, over; see ob- + fuscāre, to darken (from fuscus, dark).] ob'fus·ca'tion n., ob·fus'ca·to'ry (ŏb-fŭs'kə-tôr'ē, -tōr'ē, əb-) adj.