I. ə̇mˈpäs(ˌ)chüm, -s(ˌ)t(y)üm, -stəm noun
or im·pos·thume “, -s(ˌ)thüm, -s.thəm
( -s )
Etymology: Middle English emposteme, empostyme, imposteme, from Middle French apostume, empostume, from Latin apostema — more at aposteme
1. archaic : abscess , cyst
2. archaic : an instance or source of moral corruption
II. verb
Etymology: Middle English empostemen, from emposteme, n.
obsolete : impostumate