Where does “joukkoero” come from?

joukkoero (Finnish) comes from Finnish joukko, from Proto-Finnic joukko, from Proto-Germanic jaukiją, from Proto-Indo-European yewg- — to join, to yoke, to tie together.

Ancestry of “joukkoero”, step by step

joukkoero traces back through two separate lines of ancestry.

via Finnish joukko

StepLanguageWordMeaning
1Finnishjoukkogroup, cluster, band; crowd of people number of things or persons, especially a rather large and unorganized one
2Proto-Finnicjoukkogroup
3Proto-Germanicjaukijądraught animal; team of oxen
4Proto-Indo-Europeanyewg-to join, to yoke, to tie together

via Finnish ero

StepLanguageWordMeaning
1Finnisherodifference, distinction; Short for avioero;...
2Finnish-oForms result or action nouns from verbs; Forms...
3Proto-Finnic-oForms action/result nouns from verbs
4Proto-Uralic-w
Every word from Proto-Indo-European yewg-Every word from Proto-Germanic jaukijąEvery word from Proto-Finnic joukko