mimicry vs solemnity

mimicry

noun
  • An act or ability to simulate or effect the appearance of someone or something else. 

solemnity

noun
  • A solemn or formal observance; proceeding according to due form; the formality which is necessary to render a thing done valid. 

  • A feast day of the highest rank celebrating a mystery of faith such as the Trinity, an event in the life of Jesus, the Virgin Mary, or another important saint. 

  • An instance or example of solemn behavior; a rite or ceremony performed with reverence. 

  • The quality of being deeply serious and sober or solemn. 

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