blat vs sough

blat

verb
  • To make a senseless noise. 

  • To talk inconsiderately; blab. 

  • To cry, as a calf or sheep; bleat. 

  • To utter loudly or foolishly; blurt. 

  • To produce an overrich or overblown sound on a brass instrument such as a trumpet, trombone, or tuba. 

noun
  • The Soviet system of connections and social relationships; one's social or business network (in Russian or Soviet society). 

sough

verb
  • To make a soft rustling or murmuring sound. 

  • To drain. 

noun
  • A gentle breeze; a waft; a breath. 

  • A murmuring sound; rushing, rustling, or whistling sound. 

  • A (deep) sigh. 

  • A small drain; an adit. 

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