Where does “ääkkönen” come from?

ääkkönen (Finnish) comes from Finnish AA, from Latin A, from Etruscan 𐌀, from Ancient Greek ᾱ̔, from Phoenician 𐤀, from Egyptian 𓃾.

ääkkönen (Finnish): Any of the letters Å, å, Ä, ä, Ö, or ö, which are...