What is "pyretic"

Pyretic \Py*ret"ic\, a. [Gr. ? burning heat, fever, from ? fire: cf. F. pyr['e]tique.] (Med.) Of or pertaining to fever; febrile.

1809, from French pyrétique or directly from Modern Latin pyreticus, from Greek pyretos "fever, burning heat," related to pyr "fire" (see fire (n.)). As a noun, "a pyretic agent," from 1728.

a. Caused by, pertaining to or resulting in fever.

adj. causing fever [ant: antipyretic]