The name Kelci has its origins in the Gaelic language, which is a branch of the Celtic language family. It is believed to have originated in Ireland and Scotland during the Middle Ages, around the 5th to 15th centuries AD.

Kelci is derived from the Gaelic word "cailc," which means "chalk" or "lime." This suggests that the name may have been initially given to someone who worked with chalk or lime, such as a builder or a craftsman. Alternatively, it could have been a descriptive name referring to someone's pale complexion or light hair color.

In ancient Irish and Scottish texts, there are no specific mentions of the name Kelci. However, similar variations like Calceach and Calcach can be found, which further solidify the connection to the Gaelic word "cailc."

One of the earliest recorded individuals with the name Kelci was Kelci of Arran, a Scottish monk who lived in the 7th century AD. He is known for his work in spreading Christianity throughout the island of Arran, off the west coast of Scotland.

Another notable figure was Kelci MacAlpin, a Scottish nobleman born in 1145. He served as a trusted advisor to King William the Lion and was instrumental in mediating disputes between the Scottish Crown and the powerful noble families.

In the 14th century, there was a Kelci O'Rourke, an Irish chieftain from County Leitrim. He is remembered for his fierce resistance against the Anglo-Norman invasion of Ireland and his efforts to preserve the traditional Gaelic way of life.

During the Renaissance period, there was an Italian artist named Kelci Fontana, born in 1545 in Venice. He was renowned for his intricate fresco paintings and worked on several prominent churches and palaces in Venice and Rome.

In the 19th century, Kelci Garibaldi, born in 1821 in Nice, was a Italian patriot and military leader. He fought alongside his famous brother, Giuseppe Garibaldi, in the campaigns to unify Italy and is celebrated as a hero of the Risorgimento movement.