belt-tightening vs spartan

belt-tightening

adj
  • Causing or involving a reduction in expenditure. 

noun
  • A reduction in expenditure, often as a result of financial restrictions. 

spartan

adj
  • Austere, frugal, characterized by self-denial. 

  • Resolute in the face of danger or adversity. 

  • Lacking in decoration and luxury. 

How often have the words belt-tightening and spartan occurred in a corpus of books? (source: Google Ngram Viewer )