Where does “prefundamental” come from?

prefundamental (English) comes from English fundamental, from Latin fundāmentālis, from Latin fundāmentum, from Latin fundō, from Latin fundus, from Proto-Indo-European bʰudʰmḗn, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

Definitions

Ancestry of “prefundamental”, step by step

Step	Language	Word	Meaning
1	English	fundamental	A leading or primary principle, rule, law, or...
2	Latin	fundāmentālis	—
3	Latin	fundāmentum	—
4	Latin	fundō	—
5	Latin	fundus	bottom; farm; piece of land; estate; ground
6	Proto-Indo-European	bʰudʰmḗn	bottom
7	Proto-Indo-European	dʰewbʰ-	deep
8	Proto-Indo-European	dʰewh₂-	smoke; mist, haze

Every word from Proto-Indo-European dʰewh₂- →