pathognomic

The story

1. Ancient Greek · derived fromπαθογνωμικός
2. Latin · derived frompathognomicus
3. English todaypathognomic

From Latin pathognomicus, from Hellenistic Ancient Greek παθογνωμικός (pathognōmikós), shortened form of παθογνωμονικός (pathognōmonikós, “pathognomonic”).

First known use, by meaning

• from 17th c. Related to how emotions are manifested, especially in the face.
• from 17th c. Indicative of a specific disease, disorder etc.; pathognomonic.
• 17th–19th c. An indication of a specific disease or disorder.