smirchPronunciation: (smûrch), [key]
to discolor or soil; spot or smudge with or as with soot, dust, dirt, etc.
to sully or tarnish (a person, reputation, character, etc.); disgrace; discredit.
a dirty mark or smear, as of soot, dust, dirt, etc.
a stain or blot, as on reputation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.