em vs sie

em

pron
  • A gender-neutral third-person singular object pronoun, the objective case of ey, equivalent to the singular them and coordinate with him and her. 

noun
  • A unit of measurement equal to the height of the type in use. 

  • The name of the Cyrillic script letter М / м. 

  • The name of the Latin-script letter M. 

intj
  • a form of hesitant speech, or an expression of uncertainty; um; umm; erm 

sie

pron
  • Gender-neutral subject pronoun, grammatically equivalent to the gendered pronouns he and she 

verb
  • To strain, as milk; filter. 

  • To drop, as water; trickle. 

  • To fall, as in a swoon; faint. 

  • To sift. 

  • To sink; fall; drop. 

noun
  • A drop. 

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