super vs superannuation

super

adv
  • Very; extremely (used like the prefix super-). 

adj
  • better than average, better than usual; wonderful. 

  • Of excellent quality, superfine. 

superannuation

noun
  • A retirement benefit fund, an accumulation of regular deductions from one′s wage or salary while employed and similar regular contributions from the employer, usually administered by an independent entity; a pension. 

  • The condition or of being superannuated; old age or obsolescence. 

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