Where does “blokkiutuminen” come from?

blokkiutuminen (Finnish) comes from Finnish blokkiutua, from Finnish blokki, from French Bloc, from Middle French bloc, from Old French bloc, from Dutch blok, from Middle Dutch blok, from Old Dutch blok — thick plank, beam, pile, prop.

Ancestry of “blokkiutuminen”, step by step

StepLanguageWordMeaning
1FinnishblokkiutuaTo form a bloc
2Finnishblokkibloc; block
3FrenchBlocBloc — Bloc Québécois (Bloc québécois)
4Middle Frenchbloca considerable piece of something heavy, block
5Old Frenchbloclog, block
6Dutchbloka block; a street block; a political bloc
7Middle Dutchbloktreetrunk
8Old Dutchbloklog
9Proto-West Germanicblokkblock, log
10Proto-Germanicblukkąblock, log
11Proto-Indo-Europeanbhulg'-
12Proto-Indo-Europeanbhelg'-thick plank, beam, pile, prop
Every word from Proto-Indo-European bhelg'-Every word from Proto-Indo-European bhulg'-Every word from Proto-Germanic blukką