The Element Encyclopedia of Witchcraft: The Complete A-Z for the Entire Magical World - Judika Illes 2005
Places: A witch’s Travel Guide
Mount Hekla, an active volcano in southern Iceland, was allegedly the favorite haunt of Danish witches who flew there to attend sabbats. Mount Hekla is among Earth’s most active volcanoes and was believed to be among the entrances to Hella’s realm. A nearby town is named Hella. Some have suggested that the mountain shares its name with the goddess, although others protest that Hekla means “slab” or “covering,” which would still make it cognate with Hella as that is what her name means, too. Another suggestion is that the name Hekla is linguistically related to hexe or “witch.”
See DICTIONARY: Hexe.