vertiginous vs vorticular

vertiginous

adj
  • Revolving; rotating; rotatory. 

  • Inducing a feeling of giddiness, vertigo, dizziness or of whirling. 

  • Having an aspect of great depth, drawing the eye to look downwards. 

  • Pertaining to vertigo (in all its meanings). 

vorticular

adj
  • Synonym of vortical 

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