abridgment vs abstract noun

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 

abstract noun

noun
  • A noun that denotes an idea, emotion, feeling, quality, generalization, representation or other abstract or intangible concept, as opposed to a concrete item, or a physical object. 

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