Where does “Rubidiumdichromat” come from?

Rubidiumdichromat (German) comes from German Dichromat, from German di-, from Ancient Greek δίς, from Proto-Indo-European dwís, from Proto-Indo-European dwóh₁ — two.

Rubidiumdichromat (German): rubidium dichromate

Definitions

rubidium dichromate

Ancestry of “Rubidiumdichromat”, step by step

Rubidiumdichromat traces back through two separate lines of ancestry.

via German Dichromat

Step	Language	Word	Meaning
1	German	Dichromat	dichromate
2	German	di-	di
3	Ancient Greek	δίς	twice, doubly, again
4	Proto-Indo-European	dwís	twice, doubly; in two
5	Proto-Indo-European	dwóh₁	two

via German Rubidium

Step	Language	Word	Meaning
1	German	Rubidium	rubidium
2	Latin	rubidus	red
3	Latin	-idus	tending to
4	Proto-Italic	*-iðos	—

Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Indo-European dwís →Every word from German di- →