Ergot

Ergot, a diseased state of grasses, &c., but a disease chiefly attacking rye, produced by a fungus developing on the seeds; the drug “ergot of rye” is obtained from a species of this fungus.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Erfurt * Eric
Erastianism
Erastus
Erato
Eratosthenes
Ercilla y Zuñiga
Erdgeist
Erdmann
Erebus
Erectheus
Erfurt
Ergot
Eric
Eric the Red
Ericsson, John
Erie, Lake
Erigena, Johannes Scotus
Erin
Erinna
Erinnyes, The
Eris
Erivan