y'all vs yens

y'all

det
  • Your pl; y'all's 

  • The group spoken or written to. 

verb
  • To use the pronoun "y'all" (to). 

yens

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

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