Where does “हंम” come from?

हंम (Old Hindi) comes from Sauraseni Apabhramsa अम्हे, from Sauraseni Prakrit 𑀅𑀫𑁆𑀳𑁂, from Ashokan Prakrit ???, from Sanskrit अस्मे, from Proto-Indo-Iranian asmáy, from Proto-Indo-European n̥smé, from Proto-Indo-European éǵh₂ — I.

Ancestry of “हंम”, step by step

Step	Language	Word	Meaning
1	Sauraseni Apabhramsa	अम्हे	we
2	Sauraseni Prakrit	𑀅𑀫𑁆𑀳𑁂	we
3	Ashokan Prakrit	???	we; first-person plural personal pronoun
4	Sanskrit	अस्मे	—
5	Proto-Indo-Iranian	asmáy	—
6	Proto-Indo-European	n̥smé	us
7	Proto-Indo-European	éǵh₂	I

Every word from Proto-Indo-European éǵh₂ →Every word from Proto-Indo-European n̥smé →Every word from Proto-Indo-Iranian asmáy →