u vs yens

u

pron
  • you (in text messaging and internet conversations) 

noun
  • The name of the Latin-script letter U/u. 

  • A thing in the shape of the letter U 

character
  • The twenty-first letter of the English alphabet, called u and written in the Latin script. 

yens

pron
  • You, you all; used in referring to a group that includes one's audience. 

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