clear one's throat vs smother

clear one's throat

verb
  • Forcibly, sometimes mutedly, expelling air from one's lungs, sometimes to clear mucus, sometimes to attract attention to something; less vigorous than coughing. 

smother

verb
  • To breathe with great difficulty by reason of smoke, dust, close covering or wrapping, or the like. 

  • to burn very slowly for want of air; smolder. 

  • To suffocate; stifle; obstruct, more or less completely, the respiration of something or someone. 

  • To reduce to a low degree of vigor or activity; suppress or do away with; extinguish 

  • To cook in a close dish. 

  • To extinguish or deaden, as fire, by covering, overlaying, or otherwise excluding the air. 

  • To get in the way of a kick of the ball, preventing it going very far. When a player is kicking the ball, an opponent who is close enough will reach out with his hands and arms to get over the top of it, so the ball hits his hands after leaving the kicker's boot, dribbling away. 

  • To be suffocated. 

  • to perish, grow feeble, or decline, by suppression or concealment; be stifled; be suppressed or concealed. 

  • To get in the way of a kick of the ball. 

  • To prevent the development of an opponent's attack by one's arm positioning. 

  • To daub or smear. 

noun
  • Cookware used in such cooking. 

  • Smoldering; slow combustion. 

  • The act of smothering a kick (see verb section). 

How often have the words clear one's throat and smother occurred in a corpus of books? (source: Google Ngram Viewer )