impostume
noun
im·pos·tume im-ˈpäs-ˌchüm 
variants or imposthume
im-ˈpäs-ˌthüm
-ˌthyüm
archaic
: abscess
Word History
Etymology
Middle English emposteme, ultimately from Greek apostēma, from aphistanai to remove, from apo- + histanai to cause to stand — more at stand
First Known Use
14th century, in the meaning defined above