fond vs sweet on

fond

adj
  • Having a liking or affection (for). 

  • Affectionate. 

  • Outlandish; foolish; silly. 

  • Indulgent. 

noun
  • Brown residue in pans from cooking meats and vegetables. 

  • A group of records having shared provenance. 

  • The background design in lace-making. 

sweet on

adj
  • Enamored with; fond of. 

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