Satakunta

Etymology
First attested in 1331. Possibly from 🇰🇲, probably as an indirect ; compare, referring to both the number and a kind of an administrative division. It has sometimes been proposed that the latter component may derive from the same root  as well, either only in  or as a whole (the latter is unlikely, however).

Another theory, proposed by Nuutinen (1989), is that the first element is a Germanic loanword meaning "landing place, shore", from which also  is derived.