Correct spelling for the English word "GEIS" is [d͡ʒˈe͡ɪz], [dʒˈeɪz], [dʒ_ˈeɪ_z] (IPA phonetic alphabet).
Geis, also spelled as geas, is a term derived from Irish mythology and folklore that refers to an enchanted or magical obligation or prohibition imposed on a person. It is a concept deeply ingrained in Celtic traditions and beliefs. Geis can take the form of a specific command, vow, or taboo, often accompanied by supernatural consequences if violated.
In ancient times, geis was typically invoked by a powerful figure, such as a king, priest, or sorcerer, and bestowed upon an individual. The geis could range from something relatively simple, like refraining from a particular action or visiting a specific place, to more complex obligations, such as completing a heroic quest. The breaking of a geis was believed to bring misfortune, disgrace, or even death upon the transgressor and those associated with them.
Geis is closely connected to the belief in magic and the Otherworld in Celtic mythology. It reflects the idea that certain individuals, particularly heroes and warriors, were under the control of supernatural forces and held to a higher moral and ethical code. It also contributed to the themes of fate and destiny that often play a significant role in Celtic legends.
Today, the term geis is still occasionally used in contemporary literature, fantasy novels, and role-playing games to convey a sense of a binding magical obligation, often with dire consequences for noncompliance.