approbation vs panegyric

approbation

noun
  • The act of approving; an assenting to the propriety of a thing with some degree of pleasure or satisfaction; approval, sanction, commendation or official recognition. 

panegyric

noun
  • Someone who writes or delivers such a speech. 

  • A formal speech publicly praising someone or something. 

adj
  • panegyrical 

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