The river name is derived from the verb mara which means 'dig' - the first element Me- is from Old Norse mið meaning 'in the middle', because the mouth of the river is almost exactly at the middle of the lake Gjendin. The first word store means 'the big'.
The name of this river stems from the verb mara, which means 'dig' - the initial element Me- originates from Old Norse mið meaning 'middle', since the river's mouth is nearly in the middle of the lake Gjendin. The first word store indicates 'big'.