imposthumate means to apostemate; to form an imposthume or abscess. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
verb
- To apostemate; to form an imposthume or abscess.“[T]he Measles & Hooping Cough left the Lungs tender ten Years ago—& at this critical Time of Life they may imposthumate.”