• Geisberg: Gemeinhin abgeleitet von der in früheren Zeiten weithin verbreiteten Geiß, der Goiss.

• Quelle: www.tylwythteg.com/glossary.html
  GEAS: a Magickal Obligation that a Welsh Witch places him or herself under in order to prove his or her honor for the Gods. This is a very misunderstood term. The Witch may voluntarily accept a Geas, but a Geas can also be placed upon someone whom you wish to obligate. Also, a Sacred Trust.

• Querverweis, siehe dazu auch Geiss, Goiss, Goas unter Ortsnamen