EtymologyEiden is the Spanish form of Aidan, reflecting the English pronunciation. The name ultimately traces back to the Old Irish name Aodhán, a diminutive of Aodh, meaning "little fire." In Spanish-speaking contexts, Eiden adapts the modern English diminutive.Usage and Cultural ContextEiden is used primarily in Spanish-speaking regions, particularly in Latin America and Spain, where it emerged as a localized version of the English name Aidan. The rise of Aidan in the late 20th century—as popularized in the United States for its similarity to other surnames-turned-first names like Braden and Hayden—contributed to the adoption of Spanish-language cognates such as Eiden.Historical RootsThe name's lineage goes back to early Irish history. Aodh (meaning "fire") was borne by numerous figures in Irish mythology and several high kings. Its diminutive, Aodhán, was the name of a 6th-century king of Dál Riata and several early Irish saints, including a 6th-century bishop of Ferns and a 7th-century bishop of Lindisfarne. The Anglicized form Hugh has also been used as a traditional equivalent.Related forms in other languages include the English variants Aaden, Aden, Aiden, Aydan, and Ayden, as well as the French Ayden.Meaning: "little fire"Origin: Spanish form of Aidan, ultimately from Old Irish AodhánType: Given nameUsage regions: Spanish-speaking countries, especially Latin America and Spain