By Staffan Fridell
In: Ortnamnssällskapets i Uppsala årsskrift 2019
In the parish of Rättvik in Dalarna, on the edge of an area once colonised by Finnish settlers, there are three small lakes with names ending in -lassen: Avlassen, Mulassen and Tjällassen. Harry Ståhl argues that the final element here is a reduced form of *Ladhusio ‘barn lake’. He bases his interpretation of the names on forms recorded on maps from the late 17th century. There are a number of 18th-century records which Ståhl seems unaware of, however, attesting name forms ending instead in -laxen or -lax. The author therefore suggests that the final element in fact represents the Finnish word laks ‘inlet’.