What does Eyjafjallajökull mean in english?

Answer 1

Eyjafjallajökull means ice cap of the Eyjafjöll.

The name Eyjafjöll is made up of the words eyja (island), and the plural word fjöll (mountains) and together literally means: "the mountains of the islands".

The word fjalla is the genitive plural of fjöll, and so Eyjafjalla is the genitive form of Eyjafjöll and means: "of the Eyjafjöll". A literal part-by-part translation of Eyjafjallajökull would thus be "Islands' Mountains' ice cap".

Answer 2

Eyjafjallajökull translates from the Icelandic as "Islands' mountains' icecap." It describes the small mountains at the foot of the volcano.