Hi there,

Icelandic word "hylur" 3.person singular of verb "hylja" to cover.

Name "Hylur" in see or waters or rivers is a pit high enough that it
can not be waded, one most swim.

We Icelanders say down at river or down at sea, when you say at the
river side or or sea side. It is customary .

Such pits are often made by waterfalls.

"Völlur /velli" is open area or field. Like Battlefield
is "Stríðsvöllur". Meadows we call tún as cultivated fields.

"völlur" indicates flat surface.

kveðja
Uoden