Where does “pensaspapu” come from?

pensaspapu (Finnish) comes from Finnish papu, from Proto-Finnic papu, from Proto-Slavic bobъ, from Proto-Indo-European bʰabʰ- — bean.

pensaspapu (Finnish): bush bean, dwarf bean, Phaseolus vulgaris var. nanus any cultivar of common bean that forms erect bushes 20–60 cm tall

Definitions

bush bean, dwarf bean, Phaseolus vulgaris var. nanus any cultivar of common bean that forms erect bushes 20–60 cm tall

pensaspapu traces back through two separate lines of ancestry.

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

Step	Language	Word	Meaning
1	Finnish	pensas	bush; shrub
2	Proto-Finnic	pensas	bush
3	Proto-Finnic	pensa	—