twelve vs undern

twelve

num
  • The cardinal number occurring after eleven and before thirteen, represented in Arabic numerals as 12 and in Roman numerals as XII. 

noun
  • A jury (normally composed of twelve persons). 

  • A twelve-bore gun. 

  • The police; law enforcement, especially a narcotics officer. 

  • Front (front side of something, position in front of something). 

  • A group of twelve items. 

undern

noun
  • A light meal, particularly in the afternoon. 

  • Synonym of afternoon. 

  • Synonym of evening. 

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