expect vs flabbergast

expect

verb
  • To consider obligatory or required. 

  • To predict or believe that something will happen 

  • To consider reasonably due. 

  • To be pregnant, to consider a baby due. 

flabbergast

verb
  • To overwhelm with bewilderment; to amaze, confound, or stun, especially in a ludicrous manner. 

noun
  • An awkward person. 

  • Overwhelming confusion, shock, or surprise. 

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