1. To generate
pus; to become
imflamed and suppurate; as, a sore
or a wound
festers. "Wounds immedicable
Rankle, and fester, and gangrene." (Milton) "Unkindness may give
that shall bleed
and smart, but
it is treachery that makes it fester." (South) "Hatred . . . Festered in the hearts of the children of the soil." (Macaulay)
2. To be inflamed; to grow
virulent, or malignant; to grow
in intensity; to rankle.
Origin: OE. Festern, fr. Fester,; or fr. OF. Festrir, fr. Festre, See Fester.
Source: Websters Vocabulary