Con vs Ish

Con

name

  • A female given name, a diminutive form of Connie. 

  • A male given name, a diminutive form of Conor or Cornelius. 

Ish

name

  • A diminutive of the female given name Ishani. 

  • A diminutive of the male given name Ishmael. 

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