Genii

Genii is the plural form of genius in Latin, and in Roman religion refers to guardian spirits associated with individuals, families, or places. The phrase genius loci denotes the spirit of a place, and a household's genius might be thought of as its protective presence. In English, genii is sometimes used to denote multiple genie-like beings; however, the more common modern plural of genie is genies, and genii is considered a less common, often archaic, or stylistic variant.

The term genii also appears in literature and fantasy as a scholarly or classical-flavored plural for genie, especially when authors wish to evoke Latin diction. In popular culture, genii appear as the Genii, a fictional alien people in the Stargate universe.

Genii is also used as a proper noun. Genii is the title of a long-running magazine devoted to magic, known as Genii: The Conjurors' Magazine, which publishes articles and tricks for magicians. It is also the name of Genii Capital, a venture capital firm that has invested in sports and technology.

The word's usage remains specialized; outside Latin phrases and titles, genii is rare in everyday English and is often avoided in favor of genies for the beings, or geniuses for human talent.