Where does “mellomnavn” come from?

mellomnavn (Norwegian Bokmål) comes from Norwegian Bokmål navn, from Danish navn, from Old Danish nauæn, from Old Norse nafn, from Proto-Germanic namô, from Proto-Indo-European h₁nómn̥, from Proto-Indo-European h₃neh₃- — to name.

mellomnavn (Norwegian Bokmål): middle name

Definitions

middle name

Ancestry of “mellomnavn”, step by step

mellomnavn traces back through two separate lines of ancestry.

via Norwegian Bokmål navn

Step	Language	Word	Meaning
1	Norwegian Bokmål	navn	name
2	Danish	navn	name; reputation
3	Old Danish	nauæn	name
4	Old Norse	nafn	name, title
5	Proto-Germanic	namô	name
6	Proto-Indo-European	h₁nómn̥	name
7	Proto-Indo-European	h₃neh₃-	to name

via Norwegian Bokmål mellom

Step	Language	Word	Meaning
1	Norwegian Bokmål	mellom	between
2	Danish	mellem	between; among
3	Old Norse	í millum	—

Every word from Proto-Indo-European h₃neh₃- →Every word from Proto-Indo-European h₁nómn̥ →Every word from Proto-Germanic namô →