Where does “Paroxysmus” come from?

Paroxysmus (German) comes from Medieval Latin paroxysmus, from Ancient Greek παροξυσμός, from Ancient Greek παροξύνω, from Ancient Greek πᾰρᾰ-, from Ancient Greek παρά, from Latin verēdus, from Gaulish werēdos, from Proto-Celtic *uɸoreidos.

Paroxysmus (German): paroxysm

Definitions

paroxysm

Ancestry of “Paroxysmus”, step by step

Step	Language	Word	Meaning
1	Medieval Latin	paroxysmus	severe illness, fit of agony, paroxysm
2	Ancient Greek	παροξυσμός	irritation, the severe fit of a disease
3	Ancient Greek	παροξύνω	—
4	Ancient Greek	πᾰρᾰ-	near; next to; by, near
5	Ancient Greek	παρά
6	Latin	verēdus	—
7	Gaulish	werēdos	horse
8	Proto-Celtic	*uɸoreidos	—

Every word from Proto-Celtic *uɸoreidos →