| Date: | 1300-1400 |
| Language: | Old French |
| Origin: | festre 'sore hole in flesh', from Latin fistula |
1 if an unpleasant feeling or problem festers, it gets worse because it has not been dealt with :
The dispute can be traced back to resentments which have festered for centuries.
The dispute can be traced back to resentments which have festered for centuries.2MI if a wound festers, it becomes infected :
festering sores
festering sores3 if rubbish or dirty objects fester, they decay and smell bad

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