Where does “alkuperäissuoja” come from?

alkuperäissuoja (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.

Ancestry of “alkuperäissuoja”, step by step

alkuperäissuoja traces back through two separate lines of ancestry.

via Finnish suoja

StepLanguageWordMeaning
1Finnishsuojashelter; protective covering; refuge
2Proto-Finnicsoojashelter; protection; warm
3Russianсо́яjay {{i|dialectal}}
4Dutchsojasoy
5Japaneseそい醤油 soy sauce
6Japanese醤油soy sauce
7Middle Chinese醬油
8Middle Chinesebean paste

via Finnish alkuperäinen

StepLanguageWordMeaning
1Finnishalkuperäinenoriginal
2Finnishalkuperäorigin
3Finnishalkustart, beginning, inception, incipience; first,...
4Finnishalkaato begin, start, initiate, set in, be initiated, originate, be originated, take its origin
5Proto-Finnicalkadakto begin, to start
6Proto-Uralicalka-beginning
Every word from Middle Chinese