Eiris

Eiris is a less common variant of the name Iris, which comes directly from the Greek word for 'rainbow'. In Greek mythology, Iris was the personification of the rainbow and a messenger of the gods, particularly Hera. She was often depicted with golden wings, traveling between the heavens and earth to deliver messages. The rainbow itself was seen as a bridge between the divine and human realms.

The name Iris, and by extension Eiris, has been used since ancient times, though its popularity has fluctuated. It gained some traction in the English-speaking world during the 19th century, coinciding with a renewed interest in classical mythology and nature-inspired names. The variant 'Eiris' is likely a phonetic or stylistic alteration, maintaining the original meaning and mythological connection.