smudge

Short definition from Wiktionary

Noun

1. 1
   A blemish or smear, especially a dark or sooty one.
2. 2
   Dense smoke, such as that used for fumigation.
3. 3
   A heap of damp combustibles partially ignited and burning slowly, placed on the windward side of a house, tent, etc. to keep off mosquitoes or other insects.
4. 4
   A quantity of herbs used in suffumigation.

Verb

1. 1
   To obscure by blurring; to smear.
2. 2
   To soil or smear with dirt.
3. 3
   To use dense smoke to protect from insects.
4. 4
   To stifle or smother with smoke.
5. 5
   To burn herbs as a cleansing ritual (suffumigation).
6. 6
   To subject to ritual burning of herbs (suffumigation, smudging).