HYSTERICALLY
hysterically
(adverb) in a hysterical manner; “she screamed hysterically when she heard the news”
Source: WordNet® 3.1
Etymology
Adverb
hysterically (comparative more hysterically, superlative most hysterically)
In a hysterical manner; showing signs of hysteria.
With, or causing, very much laughter.
Usage notes
Some adjectives commonly collocating with hysterically: funny
Some verbs commonly collocating with hysterically: laugh, joke
Source: Wiktionary
HYSTERIC
Hys*ter"ic, Hys*ter"ic*al, a. Etym: [L. hystericus, Gr. utter, out.]
Definition: Of or pertaining to hysteria; affected, or troubled, with
hysterics; convulsive, fitful.
With no hysteric weakness or feverish excitement, they preserved
their peace and patience. Bancroft.
HYSTERICAL
Hys*ter"ic, Hys*ter"ic*al, a. Etym: [L. hystericus, Gr. utter, out.]
Definition: Of or pertaining to hysteria; affected, or troubled, with
hysterics; convulsive, fitful.
With no hysteric weakness or feverish excitement, they preserved
their peace and patience. Bancroft.
Source: Webster’s Unabridged Dictionary 1913 Edition