onset vs thrust

onset

noun
  • A setting about; a beginning. 

  • The initial portion of a syllable, preceding the syllable nucleus. 

  • The beginning of a musical note or other sound, in which the amplitude rises from zero to an initial peak. 

  • The initial phase of a disease or condition, in which symptoms first become apparent. 

thrust

noun
  • The primary effort; the goal. 

  • A push, stab, or lunge forward (the act thereof.) 

  • An attack made by moving the sword parallel to its length and landing with the point. 

  • The force generated by propulsion, as in a jet engine. 

verb
  • To stab; to pierce; usually with through. 

  • To enter by pushing; to squeeze in. 

  • To push out or extend rapidly or powerfully. 

  • To make advance with force. 

  • To push or drive with force; to shove. 

  • To force something upon someone. 

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