blur

a hazy or indistinct representation; "it happened so fast it was just a blur"; "he tried to clear his head of the whisky fuzz"

become glassy; lose clear vision; "Her eyes glazed over from lack of sleep"

to make less distinct or clear; "The haze blurs the hills"

make unclear, indistinct, or blurred; "Her remarks confused the debate"; "Their words obnubilate their intentions"

make a smudge on; soil by smudging

make dim or indistinct; "The fog blurs my vision"

become vague or indistinct; "The distinction between the two theories blurred"