suppurate

Etymology

From Latin suppūrātus, past participle of suppūrō, from pūr-, stem of pūs.

verb

1. (intransitive) To form or discharge pus.
   Their suppurating wounds, their goitres, their tumours are hideously evident on their hairless bodies. 1952, Norman Lewis, Golden Earth
   The only difference being Bezos was worth $60.7bn, while Bloodworth and his fellow “associates” walked back at midnight to fetid digs “with heavy legs supporting suppurating feet which over the course of the day had puffed up half a size bigger”. 2018-03-11, Nick Cohen, quoting James Bloodworth, “Hired: Six Months Undercover in Low-Wage Britain – review”, in The Guardian
2. (transitive) To cause to generate pus.
   to suppurate a sore