cohortative vs hortatory

cohortative

adj
  • Encouraging. 

  • Inflected to express plea, insistence, imploring, self-encouragement, wish, desire, intent, command, purpose, or consequence. 

noun
  • The cohortative mood. 

hortatory

adj
  • Giving exhortation or advice; encouraging. 

noun
  • Exhortation or advice; incitement; encouragement. 

  • That which exhorts, incites, or encourages. 

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