Where does “mustaherukkamehu” come from?

mustaherukkamehu (Finnish) comes from Finnish mustaherukka, from Finnish herukka, from Finnish herua, from Finnish hera, from Proto-Finnic hera, from Proto-Indo-European ser- — to flow; to guard; to bind, to tie together.

mustaherukkamehu (Finnish): blackcurrant juice

Definitions

blackcurrant juice

Ancestry of “mustaherukkamehu”, step by step

mustaherukkamehu traces back through two separate lines of ancestry.

via Finnish mustaherukka

Step	Language	Word	Meaning
1	Finnish	mustaherukka	blackcurrant
2	Finnish	herukka	currant
3	Finnish	herua	To trickle, ooze; To give or cede, especially as...
4	Finnish	hera	whey; blood serum
5	Proto-Finnic	hera	whey
6	Proto-Indo-European	ser-	to flow; to guard; to bind, to tie together

via Finnish mehu

Step	Language	Word	Meaning
1	Finnish	mehu	juice; cordial
2	Finnish	-u	Forms nouns from verbs. Most common with "e"- and...
3	Proto-Finnic	-u	Forms nouns from adjectives, nouns

Every word from Proto-Indo-European ser- →Every word from Proto-Finnic hera →Every word from Finnish hera →