Vätter

[ vet-tuh r ]
/ ˈvɛt tər /

noun

a lake in S Sweden. 80 miles (130 km) long; 733 sq. mi. (1900 sq. km).
Also Vät·tern [vet-tuh rn] /ˈvɛt tərn/, Vetter.

British Dictionary definitions for vättern

Vättern
/ (Swedish ˈvɛtərn) /

noun

Lake Vättern a lake in S central Sweden: the second largest lake in Sweden; linked to Lake Vänern by the Göta Canal; drains into the Baltic. Area: 1912 sq km (738 sq miles)