The word for the day is… erethism
erethism
\Er”e*thism\, n. [Gr. ? irritation, fr. ? to stir,
rouse, fr. ? to stir: cf. F. ['e]r['e]thisme.] (Med.)
A morbid degree of excitement or irritation in an organ.
Stumbled across it whilst reading HG Wells, “War of the Worlds”. Very tasty word.
