accidence vs semantics

accidence

noun
  • The accidents or inflections of words; the rudiments of grammar. 

  • The rudiments of any subject. 

  • A book containing the first principles of grammar; (by extension) a book containing the rudiments of any subject or art. 

semantics

noun
  • A branch of linguistics studying the meaning of words. 

  • The individual meanings of words, as opposed to the overall meaning of a passage. 

  • The meaning of computer language constructs, in contrast to their form or syntax. 

  • The study of the relationship between words and their meanings. 

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