impostumate

from The Century Dictionary.

• To affect with an impostume or abscess; make swollen or bloated.
• To form an abscess; gather; collect pus in a cyst or cavity; hence, to draw to a head, as an abscess.
• Swollen with corrupt or purulent matter; affected with an abscess.
• noun One who is affected with an impostume; one who is swelled or bloated.