olde worlde vs retro

olde worlde

adj
  • Pretending to be archaic; affectedly or pretentiously old-fashioned. 

  • Having an old-fashioned or archaic feel. 

retro

adj
  • Affecting things past; retroactive, ex post facto. 

  • Of, or relating to, the past, past times, or the way things were. 

noun
  • Past fashions or trends. 

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