luminary
UK: ˈluːmɪnəri | US: ˈluːmɪneri
n. a person who inspires or influences others, especially in a particular field
n. a natural light-giving body, such as the sun or moon (archaic)
n. an artificial light source (rare)
Derived from Latin luminare ("light, lamp"), which stems from lumen ("light"). The suffix -ary (from Latin -arius) denotes association or function. Originally used for celestial bodies (e.g., sun/moon), the term evolved metaphorically to describe "enlightened" individuals by the 17th century, reflecting their role as intellectual or moral beacons.
Einstein remains a luminary in the field of theoretical physics.
Medieval scholars regarded Aristotle as a luminary of wisdom.
The conference gathered luminaries from the tech industry.
In ancient texts, the moon was called the "lesser luminary."
Her mentorship made her a luminary for young scientists.