ephemeral vs nonstop

ephemeral

adj
  • Lasting for a short period of time. 

  • Usually dry, but filling with water for brief periods during and after precipitation. 

  • Existing for only one day, as with some flowers, insects, and diseases. 

noun
  • Something which lasts for a short period of time. 

nonstop

adj
  • Without stopping; without interruption or break. 

  • Describing a point mutation within a stop codon that causes the continued translation of an mRNA strand. 

adv
  • Without stopping; without interruption or break 

noun
  • A linguistic sound that is not a stop; a continuant. 

  • A convenience store in parts of Europe, open 24 hours a day. 

  • A nonstop journey, especially a nonstop flight. 

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