erase: [17] Like abrade, rascal, rase and razor, erase comes ultimately from Latin rādere ‘scrape’. This formed the basis of a compound verb ērādere ‘scrape out, scrape off’ (its first element is the Latin prefix ex- ‘out’). Eraser ‘rubber’ seems to be a 19th-century coinage. => abrade, rascal, rase, razor[erase etymology, erase origin, 英语词源]