daven vs paean

daven

verb
  • to recite the Jewish liturgy; to pray 

paean

verb
  • To sing a paean; to praise. 

noun
  • Any loud and joyous song; a song of triumph. 

  • An enthusiastic expression of praise. 

  • A chant or song, especially a hymn of thanksgiving for deliverance or victory, to Apollo or sometimes another god or goddess; hence any song sung to solicit victory in battle. 

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