Our word partridge comes from the Old French pertis which comes from the Latin perdicem which comes from the Greek perdix which comes from the Greek verb perdesthai which means fart, because that's what a partridge sounds like when it flies. The low, loud beating of the wings sounds like the clapping of the buttocks when the inner gale is liberated.
Petard, which is a kind of explosive, comes from the French péter meaning fart, for reasons much too obvious to state. Incidentally, it was Hamlet who originally said:
Tis the sport to have the engineer hoist with his own petard.
Hoist here simply means raised or blown sky high. Hamlet is talking about how he plans to kill Rosencrantz and Guildenstern (who then become dead).
Pumpernickel (bread) was (for some reason unrelated to good marketing) originally just a German insult. Nickel meant devil and pumpern meant... I assume, dear and flatulent reader, that you get the picture. So it's devilfart bread.
All of which carminative fun leaves you with what Milton called "a singèd bottom all involved with stench and smoke."
The Inky Fool in his Sunday Best