It's the patent's claim of WMF.
soften the swellings with figs and cooked onions. the onions should be mixed with yeast and butter. then open the swellings with a knife. (by swellings i8 mean buboes)
Guns to butter i think you mean. google it.
knife
Guns to butter i think you mean. Google it.
That means a sharpened knife. The knife has been applied to a whet stone and is nice and sharp.
I do not know what you mean by raw butter: no butter is cooked. If you mean unsalted butter, it will likely go bad more quickly because salt is a preservative. But typically, all butter lasts longer in a french butter dish (also known as a butter bell -- it has a section for water, and a section for the butter).
If you mean a regular straight blade knife and not a pocket knife, the case is called a sheath.
Do you mean 'synthetic' butter? And by rancid do you mean it doesn't taste as good as cow's butter? If so, simply because synthetic butter is generally a mixture of oils, water and flavorings. Butter is made from cream which comes from cows.
Do you possibly mean a knife that is attached to the front of a rifle? If so, that is a bayonet.
A knife mainly intended to be used to cut up vegetables
knife
Butterflies mean to me like it is flying butter flies Like flies that are flying with butter on themselves