Where does “mientre” come from?

mientre (Spanish) comes from Old Spanish demientre, from Old Spanish domientre, from Latin dum interim, from Latin interim, from Latin inter, from Proto-Indo-European h₁entér, from Proto-Indo-European h₁en — in; in, inside.

mientre (Spanish): meanwhile

Definitions

meanwhile

Ancestry of “mientre”, step by step

Step	Language	Word	Meaning
1	Old Spanish	demientre	while
2	Old Spanish	domientre	—
3	Latin	dum interim	during, while
4	Latin	interim	meanwhile, in the meantime
5	Latin	inter	between, among; during, while
6	Proto-Indo-European	h₁entér	between
7	Proto-Indo-European	h₁en	in; in, inside

Every word from Proto-Indo-European h₁en →Every word from Proto-Indo-European h₁entér →Every word from Latin inter →