extremity vs peak

extremity

noun
  • The most extreme or furthest point of something. 

  • A hand or foot. 

  • A limb (“major appendage of a human or animal such as an arm, leg, or wing”). 

  • An extreme measure. 

peak

noun
  • The top, or one of the tops, of a hill, mountain, or range, ending in a point. 

  • The highest value reached by some quantity in a time period. 

  • The upper aftermost corner of a fore-and-aft sail. 

  • A point; the sharp end or top of anything that terminates in a point; as, the peak, or front, of a cap. 

  • The extremity of an anchor fluke; the bill. 

  • The whole hill or mountain, especially when isolated. 

  • The narrow part of a vessel's bow, or the hold within it. 

  • A local maximum of a function, e.g. for sine waves, each point at which the value of y is at its maximum. 

verb
  • To reach a highest degree or maximum. 

  • To pry; to peep slyly. 

  • To rise or extend into a peak or point; to form, or appear as, a peak. 

  • To raise the point of (a gaff) closer to perpendicular. 

  • To cause to adopt gender-critical or trans-exclusionary views (ellipsis of peak trans). 

  • To acquire sharpness of figure or features; hence, to look thin or sickly. 

  • To become sick or wan. 

adj
  • At the greatest extent; maximum. 

  • bad or unfortunate. 

  • Unlucky; unfortunate 

  • Maximal, quintessential, archetypical; representing the culmination of its type. 

  • Bad 

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