muffle vs throttle

muffle

noun
  • A machine with two pulleys to hoist load by spinning wheels, polyspast, block and tackle. 

  • The bare end of the nose between the nostrils, especially in ruminants. 

  • A kiln or furnace, often electric, with no direct flames (a muffle furnace) 

  • Anything that mutes or deadens sound. 

  • A warm piece of clothing for the hands. 

verb
  • To wrap (a person, face etc.) in fabric or another covering, for warmth or protection; often with up. 

  • To wrap up or cover (a source of noise) in order to deaden the sound. 

  • To mute or deaden (a sound etc.). 

throttle

noun
  • The lever or pedal that controls this valve. 

  • A valve that regulates the supply of fuel-air mixture to an internal combustion engine and thus controls its speed; a similar valve that controls the air supply to an engine. 

verb
  • To utter with breaks and interruption, in the manner of a person half suffocated. 

  • To have the throat obstructed so as to be in danger of suffocation; to choke; to suffocate. 

  • To control or adjust the speed of (an engine). 

  • To breathe hard, as when nearly suffocated. 

  • To cut back on the speed of (an engine, person, organization, network connection, etc.). 

  • To strangle or choke someone. 

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