Rasure

The act of scraping, scratching or shaving the surface of a written instrument, for the purpose of removing certain letters or words from it It is to be distinguished from "obliteration," as the latter word properly denotes the crossing out of a word or letter by drawing a line through It with ink. But the two expressions are often used interchangeably.

See Penny v. Co.rwithe, 18 Johns. (N. Y.) 499.