IPA: /sʌbˈluːnər/
KK: /sʌbˈluːnər/
Relating to the Earth or the world, especially in contrast to the heavens or celestial realms.
The sublunar realm is often depicted as a place of change and imperfection.
Sublunar → It is formed from "sub-" (meaning under or below) and "luna" (from Latin, meaning moon). The word "sublunar" refers to things that are situated beneath the moon, often used to describe the earthly realm as opposed to the celestial.
Think of being 'under' ('sub-') the 'moon' ('luna') — that's why sublunar refers to things that are below the moon.