frequentative vs iterative

frequentative

adj
  • Serving to express repetition of an action. 

noun
  • Any of a subclass of imperfective verbs that denote a repeated action, no longer productive in English, but found in e.g. Finnish, Latin, Russian, and Turkish. 

iterative

adj
  • Expressive of an action that is repeated with frequency. 

  • Of a procedure that involves repetition of steps (iteration) to achieve the desired outcome; in computing this may involve a mechanism such as a loop. 

noun
  • A verb showing the iterative aspect. 

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