Where does “arrumar” come from?

arrumar (Spanish) comes from Old French arrumer, from Middle Dutch ruum, from Old Dutch rūm, from Proto-West Germanic rūm, from Proto-Germanic rūmaz, from Proto-Indo-European rewh₁- — free space.

arrumar (Spanish): to load (cargo)

Definitions

to load (cargo)

Ancestry of “arrumar”, step by step

Step	Language	Word	Meaning
1	Old French	arrumer	to arrange the cargo in the hold
2	Middle Dutch	ruum	—
3	Old Dutch	rūm	roomy, spacious
4	Proto-West Germanic	rūm	roomy, spacious; room, open space
5	Proto-Germanic	rūmaz	roomy, spacious, open
6	Proto-Indo-European	rewh₁-	free space

Every word from Proto-Indo-European rewh₁- →Every word from Proto-Germanic rūmaz →Every word from Proto-West Germanic rūm →