assegai vs katara

assegai

noun
  • A slim hardwood spear or javelin with an iron tip, especially those used by Bantu peoples of Southern Africa. 

  • The tree species Curtisia dentata, the wood of which is traditionally used to make assegais. 

verb
  • To spear with an assegai. 

katara

noun
  • An Indian push dagger with an H-shaped handle, used predominantly ceremonially, and rarely as a weapon. 

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