apocope vs short form

apocope

noun
  • The loss or omission of a sound or syllable from the end of a word. 

  • The loss or omission of the last vowel in a word, together with any consonants that follow it. 

short form

noun
  • A word with the same meaning as another formed by removing one or more of the syllables of the longer word, and considered a word in its own right rather than an abbreviation. 

  • Particularly in Slavic languages, a shortened form of the adjective, used predicatively. 

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