The given name Klarissa has its origins in the Latin name Clarissia, which itself is derived from the Roman family name Clarus, meaning "bright" or "clear." The name likely emerged during the Roman era, potentially as early as the 1st century AD.

In its original Latin form, Clarissia was a feminine name used in ancient Rome. It was sometimes associated with the concept of clarity, purity, or brilliance, reflecting the meaning of the root word Clarus.

One of the earliest recorded instances of the name Klarissa can be found in the writings of the 4th-century Christian author and scholar, St. Jerome. He mentioned a woman named Klarissa in one of his letters, suggesting that the name was in use among early Christian communities.

During the Middle Ages, the name Klarissa saw some popularity in certain European regions, particularly in areas influenced by Latin and Romance languages. It was sometimes used as a variant of the name Clara, which also derived from the same Latin root.

In the 12th century, a notable figure named Klarissa of Assisi (1194-1253) founded the Order of Poor Ladies, later known as the Poor Clares. She was a close friend and follower of St. Francis of Assisi and played a significant role in the Franciscan movement.

Another historical figure who bore the name Klarissa was Klarissa Strozzi (1619-1677), an Italian poet and writer from Florence. She was part of the Accademia degli Incitati and was known for her lyrical compositions.

In the 18th century, Klarissa Roupert (1736-1808) was a French writer and translator who authored several works, including translations of English novels into French.

During the 19th century, Klarissa Munro Ricketts (1838-1920) was an American author and editor who wrote extensively on topics related to women's rights and social reform.

Klarissa Marguerite Pinkola Estés (born 1945) is a contemporary American poet, author, and Jungian psychoanalyst known for her work on women's issues and storytelling.

While the name Klarissa has undergone various spelling variations over time, its roots can be traced back to the Latin Clarissia, reflecting a connection to the ideas of clarity, brightness, and purity.