Where does “päänsuojus” come from?

päänsuojus (Finnish) comes from Finnish suojus, 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.

päänsuojus (Finnish): headpiece, headgear

Definitions

  1. headpiece, headgear

Ancestry of “päänsuojus”, step by step

päänsuojus traces back through two separate lines of ancestry.

via Finnish suojus

StepLanguageWordMeaning
1Finnishsuojusguard, protection, cover, veil; pad; sheath
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 pää

StepLanguageWordMeaning
1Finnishpäähead; end, tip
2Proto-Finnicpäähead
3Proto-Uralicpäŋehead
Every word from Middle Chinese Every word from Middle Chinese 醬油Every word from Japanese 醤油