Where does “suojakypärä” come from?

suojakypärä (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.

suojakypärä (Finnish): safety helmet

Definitions

  1. safety helmet

Ancestry of “suojakypärä”, step by step

suojakypärä 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 Chinese醬bean paste

via Finnish kypärä

StepLanguageWordMeaning
1Finnishkypärähelmet; hard hat
2Proto-Finnicküpärähat
3Proto-Baltickepur-—
Every word from Middle Chinese 醬 →Every word from Middle Chinese 醬油 →Every word from Japanese 醤油 →