make-do vs pro tem

make-do

adj
  • improvised, makeshift 

noun
  • A temporary or makeshift expedient. 

pro tem

adj
  • temporary 

  • acting (of a job or role), serving temporarily 

adv
  • temporarily; for the time being 

How often have the words make-do and pro tem occurred in a corpus of books? (source: Google Ngram Viewer )