Ob*fus"cate (?), a. [L. obfuscatus, p. p. of obfuscare to darken; ob (see Ob-) + fuscare, fuscatum, to darken, from fuscus dark.] Obfuscated; darkened; obscured. [Obs.] [Written also offuscate.] Sir. T. Elyot.

Ob*fus"cate (?), v. t. [imp. & p. p. Obfuscated (?); p. pr. & vb. n. Obfuscating.] To darken; to obscure; to becloud; hence, to confuse; to bewilder.

His head, like a smokejack, the funnel unswept, and the ideas whirling round and round about in it, all obfuscated and darkened over with fuliginous matter.

Clouds of passion which might obfuscate the intellects of meaner females.

• To deliberately make more confusing in order to conceal the truth.
        Before leaving the scene, the murderer set a fire to obfuscate any evidence of his or her identity.
  
• (computing) To alter code while preserving its behavior but conceal its structure and intent.
        We need to obfuscate these classes before we ship the final release.