epitasis

Noun

e=pit=a=sis

CIDE DICTIONARY

epitasis, n. [NL., fr. Gr. a stretching, fr. to stretch upon or over; 'epi` upon + to stretch.].

That part which embraces the main action of a play, poem, and the like, and leads on to the catastrophe; -- opposed to protasis. [1913 Webster]
The period of violence in a fever or disease; paroxysm. Dunglison. [1913 Webster]