hen vs hereof

hen

adv
  • Hence. 

noun
  • A female chicken (Gallus gallus), particularly a sexually mature one kept for her eggs. 

  • A female fish (especially a salmon or trout) or crustacean. 

  • The hard clam (Mercenaria mercenaria), a bivalve shellfish. 

  • A hen night. 

  • A woman, particularly 

  • An affectionate term of address used to women or girls. 

  • A henlike person of either sex. 

  • Coordinate term: cock 

  • A female of other bird species, particularly a sexually mature female fowl. 

  • A bride-to-be, particularly in the context of her "hen night" festivities. 

verb
  • To throw. 

hereof

adv
  • Of this; concerning this. 

  • From or as a result of this. 

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