"edible inner parts of a deer or other animal," c. 1400, see humble.
Entries linking to umbles
humble adj.
late 13c., of persons, "submissive, respectful, lowly in manner, modest, not self-asserting, obedient," from Old French humble, umble, earlier umele, from Latin humilis "lowly, humble," literally "on the ground," from humus "earth" (from PIE root *dhghem- "earth"). From late 14c., of things, "lowly in kind, state, condition, or amount," also, of persons, "of low birth or rank." Related: Humbly.
Don't be so humble; you're not that great. [Golda Meir]