Where does “ilmasuoja” come from?

ilmasuoja (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.

ilmasuoja (Finnish): anti-air cover

Definitions

anti-air cover

Ancestry of “ilmasuoja”, step by step

ilmasuoja 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 Ilma

Step	Language	Word	Meaning
1	Finnish	Ilma	air
2	Finnish	-ri	Used to create names of occupations from nouns or...
3	Finnish	-ra	Forms nouns or adjectives, mostly from nominal...
4	Finnish	-i	A nominal suffix used in eg. ukko → ukki; Used...
5	Proto-Uralic	-j	oblique plural

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