fester
verb
[ ˈfɛstə ]
• (of a wound or sore) become septic; suppurate.
• "I developed a tropical sore that festered badly"
Similar:
suppurate,
become septic,
form pus,
secrete pus,
discharge,
run,
weep,
ooze,
come to a head,
maturate,
be purulent,
rankle,
apostemate,
Origin:
late Middle English: from the rare word fester ‘fistula’, later ‘festering sore’, or Old French festrir (verb), both from Old French festre (noun), from Latin fistula ‘pipe, reed, fistula’.