Einavatnet is a lake

Lake

A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

 which lies in Vestre Toten

Vestre Toten

Vestre Toten is a municipality in Oppland county, Norway. It is part of the traditional region of Toten. The administrative centre of the municipality is the village of Raufoss.-Name:...

 municipality in Oppland

Oppland

is a county in Norway, bordering Sør-Trøndelag, Møre og Romsdal, Sogn og Fjordane, Buskerud, Akershus, Oslo and Hedmark. The county administration is in Lillehammer. Oppland is, together with Hedmark, one of the only two landlocked counties of Norway....

 county, Norway

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

. It has an area of 13.52 km² and is 39.54 km around. It lies at an elevation of 398 m above sea level.

Name

The Norse

Old Norse

Old Norse is a North Germanic language that was spoken by inhabitants of Scandinavia and inhabitants of their overseas settlements during the Viking Age, until about 1300....

 form of the name was probably just *Eini. This name is derived from einir m 'juniper

Juniper

Junipers are coniferous plants in the genus Juniperus of the cypress family Cupressaceae. Depending on taxonomic viewpoint, there are between 50-67 species of juniper, widely distributed throughout the northern hemisphere, from the Arctic, south to tropical Africa in the Old World, and to the...

' (referring to the vegetation around the lake). The last element -vatnet (the finitt form of vatn n 'water, lake') is a later addition.