ambulant vs drifting

ambulant

adj
  • Able to walk. 

  • Designed for use by somebody with a disability that impairs, but does not prevent, walking. 

noun
  • A patient who is able to walk. 

drifting

adj
  • Moving aimlessly or at the mercy of external forces. 

  • Without direction, focus, or goal. 

noun
  • A driving technique where the driver intentionally oversteers, causing loss of traction in the rear wheels, while maintaining control from entry to exit of a corner. 

  • That which drifts. 

  • The act by which something drifts. 

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