eraser vs washrag

eraser

noun
  • A thing used to erase or remove something written or drawn by a pen or a pencil. 

  • A thing used to erase something written by chalk on a chalkboard, by marker on a whiteboard, or by some other erasable implement; a chalkboard eraser, whiteboard eraser, etc. 

  • One who erases. 

  • An overwriter program used to prevent data recovery. 

washrag

noun
  • A square piece of cloth for washing the face and body. 

How often have the words eraser and washrag occurred in a corpus of books? (source: Google Ngram Viewer )