bosom vs chummy

bosom

adj
  • In a very close relationship. 

noun
  • Any thing or place resembling the breast; a supporting surface; an inner recess; the interior. 

  • A woman's breast(s). 

  • A depression round the eye of a millstone. 

  • The seat of one's inner thoughts, feelings, etc.; one's secret feelings; desire. 

  • The protected interior or inner part of something; the area enclosed as by an embrace. 

  • The part of a dress etc. covering the chest; a neckline. 

verb
  • To belly; to cause to billow, swell or bulge. 

  • To enclose or carry in the bosom; to keep with care; to take to heart; to cherish. 

  • To conceal; to hide from view; to embosom. 

  • To belly; to billow, swell or bulge. 

chummy

adj
  • Friendly; on, or trying to be on, intimate terms. 

noun
  • Synonym of chum (“friend, pal”) 

  • Nickname for a person, especially a suspect or criminal. 

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