astral

The word 'astral' is a direct descendant of the Latin 'astralis,' which itself is derived from the Greek 'astron,' meaning "star." Its journey from the ancient Greek concept of a physical celestial body to its modern meanings illustrates a fascinating semantic expansion. The primary scientific meaning, "relating to the stars," retains the original concrete sense. The secondary, more abstract meaning, concerning a spiritual or non-physical plane, developed from historical beliefs that human souls or spirits were composed of or influenced by the substance of the stars, linking the celestial to the metaphysical. Thus, the word bridges the concrete observation of the cosmos and the intangible realms of esoteric thought.

Structure: astr (star) + al (adjective suffix) - astr: From Greek 'astron' (star). A combining form meaning "star" or "celestial body." - al: A suffix of Latin origin forming adjectives meaning "of, relating to, or characterized by."