ergotism

noun4

1. •
   The effect of long-term ergot poisoning, traditionally due to the ingestion of the alkaloids produced by the fungus Claviceps purpurea which infects rye and other cereals, and more recently by the action of a number of ergoline-based drugs, consisting of convulsive and gangrenous symptoms.
2. •
   The plant disease caused by ergot.
3. •
   The use of ergot-infested grain to poison animals.
4. •
   A logical deduction.

   • States are not governed by Ergotisms. Many have Ruled will who could not perhaps define a Commonwealth[…] — 1716