italic vs sloping

italic

noun
  • A typeface in which the letters slant to the right. 

  • An oblique handwriting style, such as used by Italian calligraphers of the Renaissance. 

adj
  • Designed to resemble a handwriting style developed in Italy in the 16th century. 

  • Having letters that slant or lean to the right; oblique. 

sloping

noun
  • An arrangement or motion by which something slopes. 

adj
  • a sloping roof 

  • Having a slope. 

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