As a noun nester
As a verb fester is
to become septic; to become rotten.
Other Comparisons: What's the difference?
One who nests.
(American historical ) A person who intends to settle in an area without permanent residents; a settler, as distinct from an explorer or pioneer.
To become septic; to become rotten.
To worsen, especially due to lack of attention.
- Wounds immedicable / Rankle, and fester , and gangrene.
- Deal with the problem immediately; do not let it fester .
To cause to fester or rankle.
- Hatred festered in the hearts of the children of the soil.
- For which I burnt in inward, swelt'ring hate, / And fester'd rankling malice in my breast.