esoterikos

Esoterikos is the transliteration of the Greek adjective esôterikos (εσωτερικός), meaning "inner" or "secret." Historically, the term describes knowledge or teachings intended for an inner circle, not for the general public, and is often contrasted with exoterikos ("outer").

In classical and late antique contexts, esoterikos referred to doctrines, rituals, or arguments accessible only to initiates or scholars with specialized training. The esoteric tends to be associated with allegorical interpretation or layered meanings designed to convey complex ideas beyond surface reading.

In the study of religion and philosophy, esotericism is the scholarly field examining such inner traditions, including Gnosticism, Hermeticism, Neoplatonism, certain strands of Kabbalah, and early Christian mysticism, as well as modern occult movements. The term esoterikos is more often encountered in Greek-language sources to describe inner teachings within a tradition or to name works that claim insider access. Note that the use of esoteric is debated; what counts as esoteric varies by tradition and historian, and the boundary with exoteric is fluid. Modern Greek usage often preserves the adjective as esoterikos; English scholarship uses esoteric and esotericism to discuss inner dimensions of religion.