The story
- Italian · derived frompetecchie“skin eruptions”
- New Latin · learned borrowing frompetechia
- English todaypetechia
Learned borrowing from New Latin petechia, from Italian petecchie (“skin eruptions”, plural), probably from a popular Latin diminutive of petigo (“scab, eruption”) (from impetīgo).
Etymology from Wiktionary, CC BY-SA 4.0.