murmur vs sie

murmur

verb
  • To say (something) indistinctly, to mutter. 

  • To speak or make low, indistinguishable noise; to mumble, mutter. 

noun
  • The sound made by any condition which produces noisy, or turbulent, flow of blood through the heart. 

  • A muttered complaint or protest; the expression of dissatisfaction in a low muttering voice; any expression of complaint or discontent. 

  • Soft indistinct speech. 

  • Any low, indistinct sound, like that of running water. 

sie

verb
  • To sift. 

  • To strain, as milk; filter. 

  • To drop, as water; trickle. 

  • To fall, as in a swoon; faint. 

  • To sink; fall; drop. 

noun
  • A drop. 

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

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