PAROXYSM
paroxysm, fit, convulsion
(noun) a sudden uncontrollable attack; “a paroxysm of giggling”; “a fit of coughing”; “convulsions of laughter”
Source: WordNet® 3.1
Etymology
Noun
paroxysm (plural paroxysms)
A random or sudden outburst (of activity).
An explosive event during a volcanic eruption.
A sudden recurrence of a disease, such as a seizure or a coughing fit.
Source: Wiktionary
Par"ox*ysm, n. Etym: [F. paroxysme, Gr.
1. (Med.)
Definition: The fit, attack, or exacerbation, of a disease that occurs at
intervals, or has decided remissions or intermissions. Arbuthnot.
2. Any sudden and violent emotion; spasmodic passion or action; a
convulsion; a fit.
The returning paroxysms of diffidence and despair. South.
Source: Webster’s Unabridged Dictionary 1913 Edition