Blur (blûr), v. t. [imp. & p. p.Blurred (blûrd); p. pr. & vb. n.Blurring.] [Prob. of same origin as blear. See Blear.] 1. To render obscure by making the form or outline of confused and uncertain, as by soiling; to smear; to make indistinct and confused; as, to blur manuscript by handling it while damp; to blur the impression of a woodcut by an excess of ink.
But time hath nothing blurred those lines of favor
Which then he wore.
Shak.
2. To cause imperfection of vision in; to dim; to darken.
Her eyes are blurred with the lightning's glare.
J. R. Drake.
3. To sully; to stain; to blemish, as reputation.
Sarcasms may eclipse thine own,
But can not blur my lost renown.
Hudibras.
Syn. — To spot; blot; disfigure; stain; sully.