fol-de-rol vs phylactery

fol-de-rol

noun
  • A gaudy thing of little value; a trinket. 

  • Excessive efforts expended on a something trivial; much ado about nothing. 

  • Nonsense. 

intj
  • Nonsense word traditional to English ballads and madrigals. 

phylactery

noun
  • Any small object worn for its magical or supernatural power; an amulet or charm. 

  • Either of the two small leather cases, containing biblical scrolls, worn by Jewish men at morning prayer; the tefilla. 

  • A case in which (Christian) relics were preserved. 

  • An enspelled object used (by such as a lich) to contain and protect the owner's soul. 

  • A speech scroll, an illustrative device depicting speech, song or other sound as if written on a scroll. 

How often have the words fol-de-rol and phylactery occurred in a corpus of books? (source: Google Ngram Viewer )