Where does “Suominen” come from?

Suominen (Finnish) comes from Finnish suoda, from Proto-Finnic söödäk, from Proto-Indo-European suH-é.

Ancestry of “Suominen”, step by step

Suominen traces back through two separate lines of ancestry.

via Finnish suoda

StepLanguageWordMeaning
1Finnishsuodato give, allow, permit, grant, let; Indicative...
2Proto-Finnicsöödäkto eat
3Proto-Indo-EuropeansuH-é—

via Finnish suomi

StepLanguageWordMeaning
1FinnishsuomiThe Finnish language; Third-person singular...
2Proto-Finnicsoomiperson from Southwest Finland
Every word from Proto-Indo-European suH-é →Every word from Proto-Finnic söödäk →Every word from Finnish suoda →