dingy vs out at the heels

dingy

adj
  • shabby, squalid, uncared-for 

  • dark, dull 

out at the heels

adj
  • Shabby, or in a poor plight. 

  • Wearing stockings that are worn out. 

How often have the words dingy and out at the heels occurred in a corpus of books? (source: Google Ngram Viewer )