mourning vs weeper

mourning

noun
  • Feeling or expressing sorrow over someone's death. 

  • The traditional clothes worn by those who mourn (in Western societies, typically coloured black). 

  • The act of expressing or feeling sorrow or regret; lamentation. 

  • Drapes or coverings associated with mourning. 

weeper

noun
  • A person who weeps. 

  • A weeping tree. 

  • A white border round the sleeve of a mourning dress. 

  • A pleurant. 

  • A widow's crape veil. 

  • A hired mourner. 

  • A thing that slowly leaks liquid. 

  • A crape hatband. 

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