Where does “olkasuoja” come from?

olkasuoja (Finnish) comes from Finnish suoja, from Proto-Finnic sooja, from Russian со́я, from Dutch soja, from Japanese そい, from Japanese 醤油, from Middle Chinese 醬油, from Middle Chinese 醬 — bean paste.

olkasuoja (Finnish): shoulder pad

Definitions

shoulder pad

Ancestry of “olkasuoja”, step by step

olkasuoja traces back through two separate lines of ancestry.

via Finnish suoja

Step	Language	Word	Meaning
1	Finnish	suoja	shelter; protective covering; refuge
2	Proto-Finnic	sooja	shelter; protection; warm
3	Russian	со́я	jay {{i\|dialectal}}
4	Dutch	soja	soy
5	Japanese	そい	醤油 soy sauce
6	Japanese	醤油	soy sauce
7	Middle Chinese	醬油	—
8	Middle Chinese	醬	bean paste

via Finnish olka

Step	Language	Word	Meaning
1	Finnish	olka	shoulder
2	Proto-Finnic	olka	shoulder
3	Proto-Finno-Ugric	wolka	—

Every word from Middle Chinese 醬 →Every word from Middle Chinese 醬油 →Every word from Japanese 醤油 →