n.
Function: verb
Inflected Form: fes · tered ; fes · ter · ing \ -t( ə -)ri ŋ \
Date: 14th century
intransitive verb
1 : to generate pus
2 : PUTREFY , ROT
3 a : to cause increasing poisoning, irritation, or bitterness : RANKLE <dissent fester ed unchecked> b : to undergo or exist in a state of progressive deterioration <allowed slums to fester >
transitive verb : to make inflamed or corrupt