Where does “Суоми” come from?

Суоми (Abkhaz) comes from Finnish suomi, from Proto-Finnic soomi — person from Southwest Finland.

Ancestry of “Суоми”, step by step

StepLanguageWordMeaning
1FinnishsuomiThe Finnish language; Third-person singular...
2Proto-Finnicsoomiperson from Southwest Finland
Every word from Proto-Finnic soomiEvery word from Finnish suomi