calm vs halcyon

calm

adj
  • Peaceful, quiet, especially free from anger and anxiety. 

  • with few or no waves on the surface; not rippled. 

  • Free of noise and disturbance. 

  • Without wind or storm. 

noun
  • The state of being calm; peacefulness; absence of worry, anger, fear or other strong negative emotion. 

  • A period of time without wind. 

  • The state of being calm; absence of noise and disturbance. 

verb
  • To become calm. 

  • To make calm. 

halcyon

adj
  • Calm, undisturbed, peaceful, serene. 

  • Pertaining to the halcyon or kingfisher. 

noun
  • The dead body of such a bird, said in Tudor times to act as a weather vane when hung from a beam. 

  • A kingfisher whose nesting by the sea was said, in classical mythology, to cause the Gods to restrain the wind and waves. 

  • A tropical kingfisher of the genus Halcyon, such as the sacred kingfisher (Halcyon sancta) of Australia. 

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