agitant vs agitationist

agitant

noun

  • A person who agitates. 

  • A thing that agitates. 

adj

  • That agitates. 

agitationist

noun

  • Synonym of agitator (“one who stirs up or excites others, for example political reformers”) 

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