Where does “īmum” come from?

īmum (Latin) comes from Latin īmus, from Latin īnferus, from Proto-Indo-European *(H)n̥dʰér.

Ancestry of “īmum”, step by step

Step	Language	Word	Meaning
1	Latin	īmus	—
2	Latin	īnferus	—
3	Proto-Indo-European	*(H)n̥dʰér	—

īmum — Etymology, Origin & Word History | Etymology Explorer