recession vs wane

recession

noun
  • A period of reduced economic activity 

  • A procedure in which an extraocular muscle is detached from the globe of the eye and reattached posteriorly. 

  • The act or an instance of receding or withdrawing. 

  • A period of low temperatures that causes a reduction in species; ice age. 

  • The ceremonial filing out of clergy and/or choir at the end of a church service. 

  • The act of ceding something back. 

wane

noun
  • A gradual diminution in power, value, intensity etc. 

  • The end of a period. 

  • The lunar phase during which the sun seems to illuminate less of the moon as its sunlit area becomes progressively smaller as visible from Earth. 

  • A child. 

  • A rounded corner caused by lack of wood, often showing bark. 

  • ]] 

verb
  • To progressively lose its splendor, value, ardor, power, intensity etc.; to decline. 

  • Said of light that dims or diminishes in strength. 

  • Said of a time period that comes to an end. 

  • Said of the Moon as it passes through the phases of its monthly cycle where its surface is less and less visible. 

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