The name Kejuan has its origins rooted in the Aztecan language of the indigenous people of Mexico, originating in the 14th century. It is derived from the Nahuatl words "ketzal," meaning precious or prized, and "juan," a variation of the Spanish name Juan, which itself is derived from the Hebrew name Yohanan, meaning "God is gracious."

In ancient Aztec culture, the name Kejuan was often bestowed upon children born into noble families or those deemed to possess exceptional qualities or talents. It was a name imbued with a sense of reverence and high regard, reflecting the Aztec belief in the intrinsic value and potential of the individual.

The earliest recorded instances of the name Kejuan can be traced back to the codices and glyphic writings of the Aztec civilization, where it appeared as a name given to influential figures and leaders within their society. One notable historical figure bearing this name was Kejuan Tlacahuepan, a revered Aztec warrior and strategist who lived in the late 15th century and played a pivotal role in defending Tenochtitlan, the capital of the Aztec empire, against Spanish conquistadors.

During the colonial era in Mexico, the name Kejuan underwent a gradual evolution, blending its Nahuatl roots with Spanish influences. This fusion of cultures resulted in variations of the name, such as Kejuán and Kejuano, which were adopted by both indigenous and Spanish-descended families.

In the 18th century, the name gained prominence through the life of Kejuan Ignacio Allende, a prominent figure in the Mexican War of Independence. Born in 1769, Allende was a revolutionary leader who fought alongside Miguel Hidalgo y Costilla, ultimately sacrificing his life for the cause of Mexican independence in 1811.

Another notable figure bearing the name Kejuan was Kejuan Diego Rivera, a celebrated Mexican painter and muralist who lived from 1886 to 1957. Rivera's iconic works, which often depicted scenes from Mexican culture and history, earned him widespread recognition and cemented his place as one of the most influential artists of the 20th century.

In the realm of literature, the name Kejuan was immortalized by the Mexican writer and poet Kejuan José Arreola, who lived from 1918 to 2001. Arreola's poetic works, infused with elements of magical realism and sociopolitical commentary, earned him critical acclaim and a lasting legacy in Latin American literature.