The term "dei" appears to be a typo or an abbreviation. Based on its spelling, it may refer to the Latin word "Dei," which means "of God" or "godly." This word often relates to concepts of divinity, godliness, or attributes of a deity.
The word "Dei" is derived from Latin, where "Deus" means "god." The form "Dei" is the genitive case, often used in religious or literary contexts to indicate possession, hence translating to "of God."