bemoan vs wail

bemoan

verb
  • To moan or complain about (something). 

  • To be dismayed or worried about (someone), particularly because of their situation or what has happened to them. 

wail

verb
  • To cry out, as in sorrow or anguish. 

  • To lament; to bewail; to grieve over. 

  • To make a noise like mourning or crying. 

  • To weep, lament persistently or bitterly. 

  • To perform with great liveliness and force. 

noun
  • A sound made by emergency vehicle sirens, contrasted with "yelp" which is higher-pitched and faster. 

  • Any similar sound as of lamentation; a howl. 

  • A prolonged cry, usually high-pitched, especially as of grief or anguish. 

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