Ether

The name Ether derives from the Ancient Greek word 'aithēr' (αἰθήρ), which referred to the upper, pure, bright air of the heavens, distinct from the lower, denser air (aer). In Greek mythology, Aether was a primordial deity, the personification of the upper air and light, often considered the substance of the gods. This concept was later adopted into Latin as 'aether'.

In modern usage, 'ether' also refers to a class of organic chemical compounds, and historically, it was a theoretical medium believed to fill all space, through which electromagnetic waves propagated. As a given name, 'Ether' is quite rare and often chosen for its ethereal, celestial connotations, rather than its chemical association. It has seen some use as both a male and female name, though its evocative meaning lends itself well to a more poetic or spiritual interpretation.