Where does “Peloponnesos” come from?

Peloponnesos (Finnish) comes from Ancient Greek Πελοπόννησος, from Ancient Greek νῆσος — island.

Ancestry of “Peloponnesos”, step by step

StepLanguageWordMeaning
1Ancient GreekΠελοπόννησοςthe Peloponnese or Peloponnesus
2Ancient Greekνῆσοςisland
Every word from Ancient Greek νῆσος →Every word from Ancient Greek Πελοπόννησος →
Peloponnesos — Etymology, Origin & Word History | Etymology Explorer