Where does “kosteussuojata” come from?

kosteussuojata (Finnish) comes from Finnish suojata, 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 — bean paste.

kosteussuojata (Finnish): to waterproof to proof from water or humidity

Definitions

to waterproof to proof from water or humidity

Ancestry of “kosteussuojata”, step by step

kosteussuojata traces back through two separate lines of ancestry.

via Finnish suojata

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

via Finnish kosteus

Step	Language	Word	Meaning
1	Finnish	kosteus	dampness; humidity; moisture
2	Finnish	uus	Alternative form of uusi

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