Where does “rakkohauru” come from?

rakkohauru (Finnish) comes from Finnish hauru, from Finnish -u, from Proto-Finnic -u — Forms nouns from adjectives, nouns.

rakkohauru (Finnish): bladderwrack, black tang, rockweed, bladder fucus, sea oak, black tany, cut weed, dyers fucus, red fucus, rock wrack (Fucus vesiculosus) species of seaweed

Definitions

  1. bladderwrack, black tang, rockweed, bladder fucus, sea oak, black tany, cut weed, dyers fucus, red fucus, rock wrack (Fucus vesiculosus) species of seaweed

Ancestry of “rakkohauru”, step by step

rakkohauru traces back through two separate lines of ancestry.

via Finnish hauru

StepLanguageWordMeaning
1Finnishhauruany alga of the genus Fucus
2Finnish-uForms nouns from verbs. Most common with "e"- and...
3Proto-Finnic-uForms nouns from adjectives, nouns

via Finnish rakko

StepLanguageWordMeaning
1Finnishrakkobladder; blister; vesicle
2Proto-Finnicrakkobladder; blister
Every word from Proto-Finnic -u →Every word from Finnish -u →Every word from Finnish hauru →