Tan vs Tonto

Tan

name
  • A Chinese surname from Hokkien. 

  • A surname from Vietnamese. 

  • A Chinese surname from Mandarin. 

Tonto

name
  • A member of the Tonto Apaches. 

  • The Native American sidekick of the Lone Ranger. 

noun
  • A Native American who accepts a subservient position to a white person. 

  • A sidekick. 

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