chivvy vs harass

chivvy

verb
  • To subject to harassment or verbal abuse. 

  • To coerce or hurry along, as by persistent request. 

  • To sneak up on or rapidly approach. 

  • To pursue as in a hunt. 

noun
  • Something that encourages one to act; a goad, a spur. 

harass

verb
  • To persistently bother (someone, or a group of people) physically or psychologically when such behaviour is illegal and/or unwanted, especially over an extended period. 

  • To annoy (someone) frequently or systematically; to pester. 

  • To trouble (someone, or a group of people) through repeated military-style attacks. 

  • To put excessive burdens upon (someone); to subject (someone) to anxieties. 

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