she vs ze

she

pron
  • A person whose gender is unknown or irrelevant (used in a work, along with or in place of he, as an indefinite pronoun). 

  • The female (typically) person or animal previously mentioned or implied. 

  • A ship or boat. 

noun
  • A female. 

det
  • Synonym of her 

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 she and ze occurred in a corpus of books? (source: Google Ngram Viewer )