verse vs vocative

verse

noun
  • Poetic form in general. 

  • A poetic form with regular meter and a fixed rhyme scheme. 

  • One of several similar units of a song, consisting of several lines, generally rhymed. 

  • A portion of an anthem to be performed by a single voice to each part. 

  • A small section of a holy book (Bible, Quran etc.) 

verb
  • to educate about, to teach about. 

  • To oppose, to compete against, especially in a video game. 

  • To tell in verse, or poetry. 

vocative

noun
  • A word in the vocative case 

  • The vocative case 

  • Something said to (or as though to) a particular person or thing; an entreaty, an invocation. 

adj
  • Of or pertaining to calling; used in calling or vocation. 

  • Used in address; appellative (said of that case or form of the noun, pronoun, or adjective, in which a person or thing is addressed). For example "Domine, O Lord" 

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