plunge vs precipitate

plunge

verb
  • To fall or rush headlong into some thing, action, state or condition. 

  • To pitch or throw oneself headlong or violently forward, as a horse does. 

  • To bet heavily and recklessly; to risk large sums in gambling. 

  • To thrust into liquid, or into any penetrable substance; to immerse. 

  • To cast, stab or throw into some thing, state, condition or action. 

  • To remove a blockage by suction. 

  • To dive, leap or rush (into water or some liquid); to submerge oneself. 

noun
  • Heavy and reckless betting in horse racing; hazardous speculation. 

  • A dive, leap, rush, or pitch into (into water). 

  • The act of plunging or submerging. 

  • The act of pitching or throwing oneself headlong or violently forward, like an unruly horse. 

precipitate

verb
  • To fall headlong. 

  • To separate a substance out of a liquid solution into solid form. 

  • To throw an object or person from a great height. 

  • To act too hastily; to be precipitous. 

  • To send violently into a certain state or condition. 

  • To make something happen suddenly and quickly. 

  • To come out of a liquid solution into solid form. 

  • To have water in the air fall to the ground, for example as rain, snow, sleet, or hail; be deposited as condensed droplets. 

  • To cause (water in the air) to condense or fall to the ground. 

noun
  • a solid that exits the liquid phase of a solution 

  • a product resulting from a process, event, or course of action 

adj
  • With a hasty impulse; hurried; headstrong. 

  • Moving with excessive speed or haste; overly hasty. 

  • headlong; falling steeply or vertically. 

  • Performed very rapidly or abruptly. 

  • Very steep; precipitous. 

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