To cause to become obscure or muddled.
To cast in a negative light, cast a pall over, darken.
To cover or surround with clouds.
To make indistinct or hazy, to obscure or dim.
To cause imperfection of vision in; to dim; to darken.
To become indistinct.
To transfer the input focus away from.
To smear, stain or smudge.
Something that appears hazy or indistinct
A smear, smudge or blot
In a state of doubt or confusion.