pox vs ze

pox

noun
  • Syphilis. 

  • A curse. 

  • A disease characterized by purulent skin eruptions that may leave pockmarks. 

ze

pron
  • a gender-neutral third-person singular subject pronoun, equivalent to singular they, and coordinate with gendered pronouns he and she. 

noun
  • The name of the Cyrillic script letter З / з. 

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