Blurred

to obscure or sully (something) by smearing or with a smeary substance:
The windows were blurred with soot.
to obscure by making confused in form or outline; make indistinct:
The fog blurred the outline of the car.
to dim the perception or susceptibility of; make dull or insensible:
The blow on the head blurred his senses.
to become indistinct:
Everything blurred as she ran.
to make blurs.
a smudge or smear that obscures:
a blur of smoke.
a blurred condition; indistinctness:
They could see nothing in the foggy blur.
something seen indistinctly:
The ship appeared as a blur against the horizon.
Contemporary Examples

‘Blurred Lines’ Goes Viral: Rating 15 Mash-ups, Parodies & Covers (VIDEO) Kevin Fallon July 24, 2013
The Female Eye Philip Gefter May 5, 2010
Face the Assad Reality In Syria Frank G. Wisner, Leslie H. Gelb January 25, 2014
Matthew Cordle & the Online Confession Obsession Anna Brand September 12, 2013
The CIA’s Wrong: Arming Rebels Works Christopher Dickey October 18, 2014

Historical Examples

The Heart of Unaga Ridgwell Cullum
The White Company Arthur Conan Doyle
The Wolves of God Algernon Blackwood
Thoroughbreds W. A. Fraser
Beyond the Vanishing Point Raymond King Cummings

verb blurs, blurring, blurred
to make or become vague or less distinct: heat haze blurs the hills, education blurs class distinctions
to smear or smudge
(transitive) to make (the judgment, memory, or perception) less clear; dim
noun
something vague, hazy, or indistinct
a smear or smudge
n.
v.