Where does “paroxism” come from?

paroxism (Middle English) comes from Middle French paroxisme, from Old French peroxime, from Ecclesiastical Latin paroxismus, from Ancient Greek πᾰροξῠσμός, from Ancient Greek πᾰροξῡ́νω, from Ancient Greek πᾰρᾰ-, from Ancient Greek παρά, from Latin verēdus — horse.

Ancestry of “paroxism”, step by step

StepLanguageWordMeaning
1Middle Frenchparoxisme
2Old Frenchperoxime
3Ecclesiastical Latinparoxismus
4Ancient Greekπᾰροξῠσμόςirritation, exasperation
5Ancient Greekπᾰροξῡ́νωto urge, prick, spur on, stimulate
6Ancient Greekπᾰρᾰ-near; next to; by, near
7Ancient Greekπαρά
8LatinverēdusA fast or light breed of horse; courier's horse; hunter
9Gaulishwerēdoshorse
10Proto-Celtic*uɸoreidoshorse

Words derived from “paroxism

Every word from Proto-Celtic *uɸoreidosEvery word from Ancient Greek πᾰρᾰ-Every word from Gaulish werēdos