bustle vs inertia

bustle

verb
  • To move busily and energetically with fussiness (often followed by about). 

  • To teem or abound (usually followed by with); to exhibit an energetic and active abundance (of a thing). 

  • To push around, to importune. 

noun
  • An excited activity; a stir. 

  • A cover to protect and hide the back panel of a computer or other office machine. 

  • A frame worn underneath a woman's skirt, typically only protruding from the rear as opposed to the earlier more circular hoops. 

inertia

noun
  • Lack of activity; sluggishness; said especially of the uterus, when, in labour, its contractions have nearly or wholly ceased. 

  • In a person, unwillingness to take action. 

  • The property of a body that resists any change to its uniform motion; equivalent to its mass. 

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