In Hanis I have found several different words for knives. Which makes sense, as there were ones for different tasks, and made of different materials.
The word I see most often for any knife is walwal. However, Annie Peterson gave a different word for any type of knife – qeliimihl (qælimɪɫ).
A knife made of agate or flint, carried by travelers, and used for defense, was called hlaq’ama (ɫaq’áma). It had a hole at the larger end so it could be hung from a string.
A large knife, made from a whale’s rib bone, was wolok (wə´lək). This one was a weapon of war.
And this is just what I’ve found so far. I may yet find more words for knives