Arrhetos ἄρρητος

Arrhetos (ἄρρητος), literally un-said, from the negative alpha and the root of eirō, to speak. Fourteen occurrences in the Naassene report.

A genuine ambiguity, and Hekhal does not resolve it

Greek arrhetos covers two things English separates:

• forbidden to say — the cultic sense. What initiates may not disclose. Refutatio 5.7.1’s “hidden and unspeakable mysteries”, and 5.7.4’s rite “not to be spoken”, are both this.
• impossible to say — the apophatic sense. What language cannot reach.

The Naassene material sits exactly where these meet, which is part of what makes it interesting and part of what makes it hard. Hekhal renders “unspeakable” for the first and “ineffable” for the second, and where the passage does not decide, neither does the translation: such cases are recorded as ambiguities rather than resolved by picking the more attractive English.

Why the distinction is not cosmetic

The two senses imply different things about the group. If its silences are cultic, it is behaving like a mystery religion with initiates and disclosure rules. If they are apophatic, it is making a claim about the limits of language and the nature of what is beyond them. The report is used as evidence for both readings.

Cross-tradition resonance

• Mysterion (gnostic-tradition) — the noun arrhetos most often qualifies here.
• Apophasis (christian-mysticism) — (S) structural parallel, and only in the second sense. No documented line of transmission; the shared late-antique Platonising environment is sufficient to explain the resemblance.

Hekhal Editorial. "Arrhetos." Hekhal: An Open Reference for Esoteric Tradition. Last modified May 2, 2026. https://hekhal.org/lexicon/arrhetos.

Hekhal Editorial. 2026. "Arrhetos." Hekhal: An Open Reference for Esoteric Tradition. https://hekhal.org/lexicon/arrhetos.

Hekhal Editorial. "Arrhetos." Hekhal: An Open Reference for Esoteric Tradition, May 2, 2026, hekhal.org/lexicon/arrhetos.

Hekhal Editorial. (2026). Arrhetos. Hekhal: An Open Reference for Esoteric Tradition. https://hekhal.org/lexicon/arrhetos

@misc{hekhal-lexicon-arrhetos-2026,
  author       = {{Hekhal Editorial}},
  title        = {{Arrhetos}},
  year         = {2026},
  publisher    = {{Hekhal: An Open Reference for Esoteric Tradition}},
  url          = {https://hekhal.org/lexicon/arrhetos},
  urldate      = {[date accessed]}
}