Where does “suojajännitemuuntaja” come from?

suojajännitemuuntaja (Finnish) comes from Finnish suojajännite, 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.

suojajännitemuuntaja (Finnish): safety isolating transformer

Definitions

  1. safety isolating transformer

Ancestry of “suojajännitemuuntaja”, step by step

suojajännitemuuntaja traces back through two separate lines of ancestry.

via Finnish suojajännite

StepLanguageWordMeaning
1Finnishsuojajännitesafety voltage, safety extra-low voltage
2Finnishsuojashelter; protective covering; refuge
3Proto-Finnicsoojashelter; protection; warm
4Russianсо́яjay {{i|dialectal}}
5Dutchsojasoy
6Japaneseそい醤油 soy sauce
7Japanese醤油soy sauce
8Middle Chinese醬油
9Middle Chinesebean paste

via Finnish muuntaja

StepLanguageWordMeaning
1Finnishmuuntajatransformer; charger, adapter
2Finnishice
3Proto-Finno-Ugric*ja
4Proto-Germanicjahwand, also
5Proto-Germanic-hwand; Forms distributives from interrogatives
6Proto-Germanic-hwe
7Proto-Indo-European-kʷeand; Forms distributives from interrogatives
Every word from Middle Chinese Every word from Middle Chinese 醬油Every word from Japanese 醤油