a person or thing that scrapes.
any of various tools or utensils for scraping.

Origin of scraper

First recorded in 1545–55; scrape + -er1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Word Origin and History for scraper

"instrument for scraping," 1550s, agent noun from scrape (v.). From 1560s as "miser, money-grubber;" 1610s as "fiddler;" 1792 as "barber."

Online Etymology Dictionary, © 2010 Douglas Harper