Where does “soijapapu” come from?

soijapapu (Finnish) comes from Finnish soija, from Dutch soja, from Japanese そい, from Japanese 醤油, from Middle Chinese 醬油, from Middle Chinese 醬 — bean paste.

soijapapu (Finnish): soybean, "Glycine max"

Definitions

soybean, "Glycine max"

Ancestry of “soijapapu”, step by step

soijapapu traces back through two separate lines of ancestry.

via Finnish soija

Step	Language	Word	Meaning
1	Finnish	soija	soy/soya; soy sauce; sweat
2	Dutch	soja	soy
3	Japanese	そい	醤油 soy sauce
4	Japanese	醤油	soy sauce
5	Middle Chinese	醬油	—
6	Middle Chinese	醬	bean paste

via Finnish papu

Step	Language	Word	Meaning
1	Finnish	papu	bean; common bean; muscle, especially the biceps
2	Proto-Finnic	papu	bean
3	Proto-Slavic	bobъ	bean, fava bean
4	Proto-Indo-European	bʰabʰ-	bean

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