medallion vs motto

medallion

noun
  • A large medal, usually decorative. 

  • A cut of meat resembling a medallion. 

  • A yellowish brown. 

  • A usually round or oval frame (often made of stucco) containing a decoration. 

  • A circular certificate used in some places to register a vehicle, especially a taxicab. 

verb
  • To mark with, or as with, a medallion or medallions. 

motto

noun
  • A sentence, phrase, or word, forming part of an heraldic achievement. 

  • A sentence, phrase, or word, prefixed to an essay, discourse, chapter, canto, or the like, suggestive of its subject matter; a short, suggestive expression of a guiding principle; a maxim. 

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