solicitant vs supplicant

solicitant

noun
  • One who solicits. 

  • A priest who abused the confessional to solicit women. 

supplicant

noun
  • one who comes to humbly ask or petition 

  • A device attempting to authenticate itself to an 802.11 network. 

adj
  • begging, pleading, supplicating 

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