perfume vs sweetness

perfume

noun
  • A pleasant smell; the scent, odor, or odoriferous particles emitted from a sweet-smelling substance; a pleasant odor 

  • A substance created to provide a pleasant smell or one which emits an agreeable odor. 

verb
  • To apply perfume to; to fill or impregnate with a perfume; to scent. 

sweetness

noun
  • The quality of giving pleasure to the mind or senses, pleasantness, agreeableness. 

  • A pleasant disposition; kindness. 

  • Term of address for one's sweetheart. 

  • The condition of being sweet or sugary. 

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