aeriform vs floaty

aeriform

adj
  • Pertaining to air. 

  • Having a form similar to that of air. 

  • Light, unsubstantial, or unstable. 

floaty

adj
  • buoyant, tending to float on a liquid or rise in air or gas 

  • lightweight, so as to rise when the wearer is walking. 

  • Having a feeling of extreme calm, as if floating through the air. 

  • light, hypnotic and relaxing. 

noun
  • A lilo or similar item that floats on water and can be sat on. 

  • A particle of food, etc. found floating in liquid. 

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