Where does “aputuomari” come from?

aputuomari (Finnish) comes from Finnish tuomari, from Old Swedish dōmare, from Old Norse dómari, from Old Norse dómr, from Proto-Germanic dōmaz, from Proto-Indo-European dʰóh₁mos, from Proto-Indo-European dʰeh₁- — to do, put, place.

aputuomari (Finnish): assistant referee

Definitions

assistant referee

Ancestry of “aputuomari”, step by step

aputuomari traces back through two separate lines of ancestry.

via Finnish tuomari

Step	Language	Word	Meaning
1	Finnish	tuomari	judge, justice; Short for erotuomari
2	Old Swedish	dōmare	—
3	Old Norse	dómari	a judge, one who judges
4	Old Norse	dómr	judgement
5	Proto-Germanic	dōmaz	judgement
6	Proto-Indo-European	dʰóh₁mos	that which is put, placed
7	Proto-Indo-European	dʰeh₁-	to do, put, place

via Finnish apu

Step	Language	Word	Meaning
1	Finnish	apu	help; assistance; helping hand
2	Proto-Finnic	apu	Alternative form of *api

Every word from Proto-Indo-European dʰeh₁- →Every word from Proto-Indo-European dʰóh₁mos →Every word from Proto-Germanic dōmaz →