i Register
In some senses, impostume is marked as obsolete. Watch for register when choosing this word.
noun
An abscess.
The great impoſtume of the realme vvas dravvne / Euen to a head: the multitudinous ſpavvne / VVas the corruption, vvhich did make it ſvvell / VVith hop'd ſedition (the burnt ſeed of hell.)
Jaſon Phereus [Jason of Pherae] [was] utterly forſaken of all Phyſitians, by reaſon of an impoſtume he had in his breaſt […]
verb
Alternative form of imposthume.