clutch vs sheathe

clutch

verb
  • To seize, as though with claws. 

  • To unexpectedly or luckily succeed in a difficult activity. 

  • To hatch. 

  • To grip or grasp tightly. 

  • To win in a 1vX (one versus X) situation. 

adj
  • Performing or tending to perform well in difficult, high-pressure situations. 

noun
  • The claw of a predatory animal or bird. 

  • An important or critical situation. 

  • A brood of chickens or a sitting of eggs. 

  • A device to interrupt power transmission, commonly used to separate the engine and gearbox in a car. 

  • A fastener that attaches to the back of a tack pin to secure an accessory to clothing. (See Clutch (pin fastener).) 

  • A small handbag or purse with no straps or handle. 

  • A group or bunch (of people or things). 

  • Any device for gripping an object, as at the end of a chain or tackle. 

  • A grip, especially one seen as rapacious or evil. 

  • The pedal in a car that disengages power and torque transmission from the engine (through the drivetrain) to the drive wheels. 

  • A difficult maneuver 

sheathe

verb
  • To thrust (a sharp object like a sword, a claw, or a tusk) into something. 

  • To put (something such as a knife or sword) into a sheath. 

  • Of an animal: to draw back or retract (a body part) into the body, such as claws into a paw. 

  • To encase (something) with a protective covering. 

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