sagaciously vs scintillantly

sagaciously

adv
  • In a sagacious manner, in a way that is clever, shrewd, observant, keen of intellect or discernment, cunning or with ability and aptitude; sagely. 

scintillantly

adv
  • In a scintillant manner. 

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