spendthrift behavior vs thrift

spendthrift behavior

thrift

noun
  • The characteristic of using a minimum of something (especially money). 

  • A savings bank. 

  • Any of various plants of the genus Armeria, particularly Armeria maritima. 

verb
  • To obtain from a thrift shop. 

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