The name Kaycie is a modern English variant of the Greek name Kakia, derived from the word "kakos" meaning "bad" or "evil." It first appeared in written records during the Byzantine period, around the 5th century AD. While the name itself was not widely used, it was occasionally given as a satirical or ironic name, with the intention of warding off evil spirits.

One of the earliest recorded individuals with the name Kaycie was a Greek philosopher from the 6th century AD, known as Kaycie of Ephesus. He was a prominent figure in the Neoplatonic school of thought and wrote extensively on the concepts of good and evil in the universe.

During the Middle Ages, the name resurfaced in various regions of Europe, particularly in the British Isles. A notable example was Kaycie the Younger, a Scottish noblewoman who lived in the 12th century AD. She was known for her involvement in the political struggles between the Scottish and English crowns during that period.

In the Renaissance era, the name Kaycie gained some popularity among the English aristocracy. One of the most renowned individuals with this name was Kaycie Howard, a cousin of Queen Anne Boleyn, who served as a lady-in-waiting at the court of King Henry VIII in the 16th century.

The name also found its way into literary works, such as the character of Kaycie Pinkerton in Charles Dickens' novel "The Pickwick Papers," published in 1837. Kaycie Pinkerton was portrayed as a spirited and mischievous young woman, reflecting the name's association with boldness and unconventionality.

Another notable figure was Kaycie Milligan, an Irish poet and playwright born in 1888. She was renowned for her satirical works that often challenged societal norms and conventions, further emphasizing the name's connection to nonconformity and rebellion against traditional values.

While the name Kaycie has its roots in antiquity and has been used sporadically throughout history, it was not until the late 20th century that it gained widespread popularity as a given name, particularly in the English-speaking world. This resurgence can be attributed to the growing trend of creating unique and unconventional names, often by modifying or combining traditional names.