Iriss

The name Iriss is a variant of Iris, which comes directly from the Greek word for 'rainbow'. In Greek mythology, Iris was the goddess of the rainbow, serving as a messenger of the gods, particularly Hera. She was often depicted with golden wings and a herald's staff, traveling between the heavens and the earth on the arc of a rainbow. The flower iris is also named after her due to its wide variety of colors.

The spelling 'Iriss' is less common than 'Iris' and likely emerged as a phonetic or stylistic variation. While 'Iris' has a long history of use as a given name, especially since the 19th century, 'Iriss' is a more modern adaptation, often chosen for its unique spelling while retaining the original meaning and mythological association.