Where does “extraradical” come from?

extraradical (English) comes from English radical, from French radical, from Late Latin radicalis, from Latin rādīx, from Proto-Italic wrādīks, from Proto-Indo-European wréh₂ds — root.

extraradical (English): Lying outside of a root

Definitions

Lying outside of a root

Ancestry of “extraradical”, step by step

Step	Language	Word	Meaning
1	English	radical	Favoring fundamental change, or change at the...
2	French	radical	radical; radical, root
3	Late Latin	radicalis	of or pertaining to the root, having roots,...
4	Latin	rādīx	root of a plant
5	Proto-Italic	wrādīks	root
6	Proto-Indo-European	wréh₂ds	root

Every word from Proto-Indo-European wréh₂ds →Every word from Proto-Italic wrādīks →Every word from Latin rādīx →