mackle

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A blurred or double impression in printing.
2. v. To blur or double (a printed impression).
3. v. To become blurred.

Century Dictionary and Cyclopedia

1. n. A spot; specifically, in printing, a blemish in press-work made by a double impression, or by slipping or scraping, or by a wrinkle in the paper. Also macle, macule.
2. To spot; maculate; blur; especially, in printing, to make a slipped, blurred, or double impression of. Also macule.

Wiktionary

1. n. obsolete A blurred or double impression in printing.
2. v. obsolete To blur, or be blurred, in printing, as if there were a double impression.

GNU Webster's 1913

1. n. Same as macule.
2. v. To blur, or be blurred, in printing, as if there were a double impression.

WordNet 3.0

1. n. a printed impression that is blurred or doubled