thee vs yo

thee

noun
  • The letter ⟨(⟩, which stands for the th sound /ð/ in Pitman shorthand. 

verb
  • To address (a person) using the pronoun thee. 

  • To use the word thee. 

yo

noun
  • The letter Ё, ё. 

intj
  • An expression of surprise or excitement. 

  • An interjection similar to hey. 

  • A greeting similar to hi. 

  • Present! Here! 

  • Emphatic conclusion to a statement. 

pron
  • third-person singular, familiar 

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