And here is the recipe for A Lumber Pye, which is apparently the same or similar to an umble pye:
Both are from The Compleat Housewife: Or, Accomplish’d Gentlewoman’s Companion (1750, 14th edition).
Umble comes from the Latin for lumb (loins), or the meaty parts of a beast like a deer (heart, liver, kidneys, lungs) (http://www.foodsofengland.co.uk/umbleornumblepie.htm).
There is debate on whether or not the umble pie is related to the phrase to eat humble pie. For more on that check this out: https://wordhistories.net/2017/04/30/to-eat-humble-pie/
