The name Keily has Irish roots, originating from the Anglicized version of the Irish surname Ó Caollaidhe, meaning 'slender. 'Keily and Kiely are related names with distinct origins; Keily is derived from Ó Caollaidhe, meaning 'slender, 'while Kiely comes from Ó Cadhla, meaning 'graceful. 'Over time, the name has evolved in popularity, influenced by Irish immigration to the United States in the mid-19th century. Parents often choose Keily for its classic yet modern feel, reflecting a connection to Irish heritage. The name's pleasant sound and versatility in pronunciation (KEE-lee or KAY-lee) have contributed to its enduring popularity.
