Final answer:
The term synonymous with 'witness a(n) apostolos' is 'Deification'. Historical religious terms like 'phôtisma' and 'symbolon' reflect transformations and enlightenment drawing parallels to apotheosis in early Christian and Mystery traditions.
Step-by-step explanation:
The term apostolos or apostolos seen in 'witness a(n) apostolos' is synonymous with 'Deification'. The excerpt provided discusses the historical usage of certain terms in religious contexts, particularly within early Christian, Orphic, and Mystery traditions. For instance, the term phôtisma is associated with Christian baptism and enlightenment, hinting at a spiritual transformation akin to witnessing an apotheosis, which directly relates to becoming divine or deified. Additionally, the term symbolon, historically used as a password during baptism, later evolved to mean 'Creed' and has its roots in the Orphic-Bacchic Mysteries. These historical religious practices embody the essence of transformation that is parallel to the concept of apotheosis.