obnubilate

(verb) make less visible or unclear. Synonyms: obscure, befog, becloud, haze over, fog, cloud, mist. Examples: "The stars are obscured by the clouds." "The big elm tree obscures our view of the valley."

(verb) make unclear, indistinct, or blurred. Synonyms: confuse, blur, obscure. Examples: "Her remarks confused the debate." "Their words obnubilate their intentions."