atilt vs slanty

atilt

adj
  • At an angle from the vertical or horizontal. 

adv
  • At an angle from the vertical or horizontal; at the point of falling over. 

  • Tilting or as if tilting (charging with a lance, like a knight on horseback in a joust). 

prep
  • Diagonally over or across. 

slanty

adj
  • slanted 

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