blurring
blur-ring
verb
Making something difficult to see, distinguish, or understand clearly.
"The rain was blurring the view ahead."
noun
The act or result of making something unclear, indistinct, or less sharp.
"There was a blurring of the image."
Thesaurus
Synonyms: blur, blear, glaze over, film over, obscure, obnubilate, confuse, dim, slur, fuzz, smutch, smear