Where does “समम्” come from?

समम् (Sanskrit) comes from Sanskrit सम, from Proto-Indo-Iranian samHás, from Proto-Indo-European somHós, from Proto-Indo-European sem- — together, one.

Ancestry of “समम्”, step by step

Step	Language	Word	Meaning
1	Sanskrit	सम	same, equal, alike; equivalent to, like,...
2	Proto-Indo-Iranian	samHás	same, equal
3	Proto-Indo-European	somHós	same, alike
4	Proto-Indo-European	sem-	together, one

Words derived from “समम्”

से
سے
मुझसे
सबसे
इनसे
इससे
उनसे
उससे
जिससे

Every word from Proto-Indo-European sem- →Every word from Proto-Indo-European somHós →Every word from Proto-Indo-Iranian samHás →