Fell is moorland, see "mýrlendi" "fjall or fjöll" we name Mountains.
But Icelandic "Fell [FeDL]" are Rocky Hills or smaller than
mountains: "fjöll".

Hi Blanc,
I finally got a chance to look up fell in English. Gordon had translated
fjall to English as fell. In my big English dictionary it says a fell is a
moorland or barren or rocky hillside.

In American English, one rarely encounters the word moorland, but in the
English of Great Britain, there seem to be very many words for different
sorts of moorlands.
Grace
Fred and Grace Hatton
Hawley Pa