Why is a knife called a knife?

Related questions

1. What's a knife handle called?
2. Does carrying a knife make you safer?
3. Can a knife cut through bone?
4. Why do tomatoes blunt knives?
5. How many knives are there?
6. What is trimming knife?
7. Which knife is best for cutting vegetables?
8. Is a knife clipped in your pocket concealed?
9. Are machetes illegal?
10. Do I need a slicing knife?

Tags

1. #mankind
2. #norse
3. #knives
4. #first
5. #tools
6. #million
7. #cutting
8. #knifr
9. #oldowan
10. #attached
11. #plural
12. #knife
13. #least
14. #various
15. #evidenced
16. #blade
17. #purposes
18. #possibly
19. #handle
20. #serve
21. #years