Where does “Doppelbindung” come from?

Doppelbindung (German) comes from German doppel-, from German Doppel, from Middle Dutch dubbel, from French doublé, from Middle French double, from Old French doble, from Latin dūplus, from Proto-Italic *duplos.

Doppelbindung (German): double bond

Definitions

double bond

Ancestry of “Doppelbindung”, step by step

Step	Language	Word	Meaning
1	German	doppel-	duplicate, double; double
2	German	Doppel	doubles; duplicate
3	Middle Dutch	dubbel	—
4	French	doublé	double, brace, pair; double; doublé
5	Middle French	double	—
6	Old French	doble	double
7	Latin	dūplus	—
8	Proto-Italic	*duplos	—

Every word from Proto-Italic *duplos →

Doppelbindung — Etymology, Origin & Word History | Etymology Explorer