mock up vs presage

mock up

verb
  • To create a model or demonstration; to create a preliminary version or sample. 

presage

verb
  • To predict or foretell something. 

  • To make a prediction. 

  • To have a presentiment of; to feel beforehand; to foreknow. 

noun
  • A warning of a future event; an omen. 

  • An intuition of a future event; a presentiment. 

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