Nubbin (noun)

1. A small protuberance, bump, or irregularity on an object, especially one that is noticeable or distracting.
2. A small, misshapen or stunted part of a plant or animal.
3. A small, unimportant or insignificant detail.

Origin:

Derived from the middle english word nubbe, meaning 'small lump or knot', which is used to describe a small protuberance or irregularity on an object.

Examples:

1. The carpenter sanded down the nubbin on the wooden surface to make it smooth.
2. The nubbin on the apple was removed before being used for cooking.
3. The nubbin on the cloth was noticeable and detracted from its overall appearance.
4. The nubbin on the leaf was a sign of damage or disease.
5. The nubbin was just a minor detail and didn't affect the overall function of the item.