Where does “vikavirtasuojakytkin” come from?

vikavirtasuojakytkin (Finnish) comes from Finnish suojakytkin, 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.

vikavirtasuojakytkin (Finnish): residual-current device, residual current circuit breaker, ground fault circuit interrupter, ground fault interrupter device that disconnects an electric circuit whenever it detects an imbalance between the energized conductor and the return conductor

Definitions

  1. residual-current device, residual current circuit breaker, ground fault circuit interrupter, ground fault interrupter device that disconnects an electric circuit whenever it detects an imbalance between the energized conductor and the return conductor

Ancestry of “vikavirtasuojakytkin”, step by step

vikavirtasuojakytkin traces back through two separate lines of ancestry.

via Finnish suojakytkin

StepLanguageWordMeaning
1Finnishsuojakytkinprotection circuit breaker
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 vikavirta

StepLanguageWordMeaning
1Finnishvikavirtaresidual current, fault current abnormal electrical current that occurs during an electrical fault
2Finnishvikaflaw, malfunction, failure, problem; fault; stain...
3Finnishviimeinenlast, final; nth last; dying
4Finnish-inen-like, -ous, -y; -en; Creates adjectives from...
5Finnish-uusForms nouns from adjectives, expressing a quality
6Proto-Finnic-uc-ness, -hood
Every word from Middle Chinese Every word from Middle Chinese 醬油Every word from Japanese 醤油