Iris vs Set

Iris

name
  • A messenger of the gods, and goddess of rainbows. 

  • A female given name from Ancient Greek; a flower name used since the end of the 19th century. 

  • 7 Iris, a main belt asteroid. 

Set

name
  • An ancient Egyptian god, variously described as the god of chaos, the god of thunder and storms, or the god of destruction. 

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