antiqueness vs second childhood

antiqueness

noun
  • The state or quality of being antique. 

second childhood

noun
  • The period or state of cognitive decline of an elderly person, characterized by childlike judgment and behavior. 

  • A childlike state in any adult, resulting from mental illness, trauma, or other conditions. 

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