heads-up vs hortative

heads-up

noun
  • A warning or call to pay attention; an advisory notice; a notice of what is to happen; a holler. 

  • Involving two players. (usually said when there are only two players in the table; or, when all players except two folded) 

adj
  • With head directly above the neck, eyes front. 

  • Alert; vigilant 

hortative

noun
  • A mood or class of imperative subjunctive moods of a verb for giving strong encouragement. 

adj
  • Of a mood or class of imperative subjunctive moods of a verb for giving strong encouragement. 

  • Urging, exhorting, or encouraging. 

How often have the words heads-up and hortative occurred in a corpus of books? (source: Google Ngram Viewer )