hollow-eyed vs wan

hollow-eyed

adj
  • Having sunken, dark ringed eyes demonstrative of fear or lack of sleep. 

wan

adj
  • Dim, faint. 

  • Bland, uninterested. 

  • Pale, sickly-looking. 

noun
  • The quality of being wan; wanness. 

  • A girl or woman. 

How often have the words hollow-eyed and wan occurred in a corpus of books? (source: Google Ngram Viewer )