abbreviature vs abridgment

abbreviature

noun
  • A shortened form of a word or phrase, used in place of the whole; an abbreviation. 

  • An abridgment; a compendium; an abstract. 

abridgment

noun
  • An epitome or compend, as of a book; a shortened or abridged form; an abbreviation. 

  • The state of being abridged or lessened. 

  • The leaving out of certain portions of a plaintiff's demand, the writ still holding good for the remainder. 

  • The act of abridging; reduction or deprivation 

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