8 letters · 15 points in Scrabble
noun a minute red or purple spot on the surface of the skin as the result of tiny hemorrhages of blood vessels in the skin (as in typhoid fever)
originLearned 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 3.0