• IPA: /ˈpjutɹəfaɪ/

putrefy

1. To become filled with a pus-like or bile-like substance.
2. To reach an advanced stage of decomposition.
3. To become gangrenous.
4. To make morbid, carious, or gangrenous.

   to putrefy an ulcer or wound

5. To corrupt; to make foul.
   • 1625, Francis Bacon, Of Suitors

     Private suits do putrefy the public good.

   • c. 1597, William Shakespeare, “The First Part of Henry the Fourth, […]”, in Mr. William Shakespeares Comedies, Histories, & Tragedies: Published According to the True Originall Copies (First Folio), London: Printed by Isaac Iaggard, and Ed[ward] Blount, published 1623, OCLC 606515358 ↗, [Act IV, scene vii]:

     They would but stink, and putrefy the air.

• decay
• fester
• rot