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PHILOSOPHICAL
ἀπόρρητον (τό)

ΑΠΟΡΡΗΤΟΝ

LEXARITHMOS 779

The term aporrēton, as a substantivized adjective, denotes that which is forbidden to be spoken, a secret, or an ineffable truth. From the Pythagoreans and the Eleusinian Mysteries to state secrets, this word encapsulates the concept of knowledge reserved for the initiated or intended to remain hidden. Its lexarithmos (779) suggests a profound connection to the notion of the "unutterable."

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Definition

The term ἀπόρρητον (to) is the substantivized neuter form of the adjective ἀπόρρητος, -on, which derives from the privative prefix ἀπό- and ῥητός ("spoken," from the verb ῥέω, "to speak, to flow"). Its literal meaning is "that which must not be spoken," or "that which has been forbidden to be spoken." In classical Greek, this word acquired various nuances, always centered on the core ideas of silence and secrecy.

In philosophy, particularly among the Pythagoreans, the "ἀπόρρητα δόγματα" (secret doctrines) were teachings transmitted only to a select circle of disciples who had sworn an oath of silence. This practice underscored the sanctity and potential danger of such knowledge, as well as the necessity of spiritual preparation before its revelation. The concept of ἀπόρρητον is thus closely linked to the idea of initiation and esoteric knowledge.

Beyond philosophy, the word was widely used in religious contexts, such as the Eleusinian Mysteries, where the "ἱερὰ ἀπόρρητα" (sacred secrets) were the holy rites and doctrines that were forbidden to be disclosed to the uninitiated, under threat of divine punishment. In the political and legal spheres, ἀπόρρητον referred to state secrets or information whose public disclosure would harm the public interest, thereby imposing confidentiality on those who possessed it.

The significance of ἀπόρρητον transcends a simple prohibition of speech; it often implies the very inadequacy of language to fully describe certain experiences or truths. Something can be ἀπόρρητον not only because it is forbidden, but also because it is ἄρρητον, i.e., beyond verbal expression, such as mystical experiences or higher philosophical insights.

Etymology

ἀπόρρητον ← ἀπό- + ῥητός ← ῥέω (root ῥε-/ῥη-, meaning "to speak, to flow")
The word ἀπόρρητον originates from the prefix ἀπό- (indicating separation or prohibition) and the adjective ῥητός. ῥητός is a derivative of the verb ῥέω, which in ancient Greek held a dual meaning: "to flow" (for liquids) and "to speak, to say." The meaning "to speak" predominates in the family of ἀπόρρητον. The root ῥε-/ῥη- is an Ancient Greek root belonging to the oldest stratum of the language, which has generated numerous words related to speech and flow.

From the same root ῥε-/ῥη- stem many words related to speech, declaration, and expression. Cognate words include ῥῆμα ("word, saying"), ῥήτωρ ("speaker, orator"), ῥητορική ("art of rhetoric"), ῥητός ("spoken, stated, explicit"), as well as compounds such as ἄρρητος ("unspeakable, ineffable") and ἀπόρρησις ("prohibition, secret"). This word family highlights the central importance of speech and silence in the ancient Greek world.

Main Meanings

  1. That which is forbidden to be spoken, a secret — The primary and most common meaning, referring to information that must remain concealed.
  2. Sacred mystery, ritual secret — In the context of mystery cults, the holy doctrines and rites that were not permitted to be revealed to the uninitiated.
  3. State secret, public secret — Information concerning the security or interests of the city-state, whose disclosure would be detrimental.
  4. Ineffable, unspeakable — Something impossible to express in words due to its nature (e.g., divine experiences, higher truths).
  5. Secret doctrines/teachings — Philosophical or religious principles transmitted only to a select circle of disciples.
  6. Forbidden parts of the body — Euphemistically, the genitals or other body parts considered shameful to mention openly.

Word Family

ῥε-/ῥη- (root of the verb ῥέω, meaning "to speak, to flow")

The root ῥε-/ῥη- constitutes one of the oldest and most productive nuclei of the Greek language, possessing a dual meaning: on the one hand, "flow" (as of water), and on the other, "speech" or "declaration." This dual nature of the root has led to a rich family of words exploring concepts of expression, silence, voice, and movement. In the case of ἀπόρρητον, the meaning of speech and its prohibition is dominant, highlighting the value of the unspoken. Each member of the family develops an aspect of this fundamental root, from the simple word to complex rhetoric.

ῥέω verb · lex. 905
The original verb of the root, with a dual meaning: "to flow" (for liquids) and "to speak, to say, to declare." It is the source of all words related to speech and expression, including ἀπόρρητον.
ῥῆμα τό · noun · lex. 149
The "word," the "saying," the "deed." A direct derivative of ῥέω, it denotes expressed thought or declared action. In grammar, it refers to the "verb" form.
ῥητός adjective · lex. 678
"Spoken, stated, explicit." The adjective from which ἀπόρρητον is derived (with the privative ἀπό-). It refers to something that has been explicitly articulated and is known.
ἄρρητος adjective · lex. 779
"Unspeakable, ineffable, that which cannot be spoken." With a privative ἀ- prefix, it denotes something impossible or forbidden to express in words. It is isopsephic with ἀπόρρητον, underscoring their close conceptual relationship.
ἀπόρρητος adjective · lex. 929
"That which is forbidden to be spoken, secret." The adjective from which ἀπόρρητον is substantivized. It describes something that must remain hidden, often due to sacred or political prohibitions.
ῥήτωρ ὁ · noun · lex. 1308
The "speaker," the "orator." One who has the ability to speak publicly and persuade. Directly connected to the act of ῥέω (to speak) and the art of discourse.
ῥητορική ἡ · noun · lex. 616
The "art of speech," "rhetoric." The science and art of persuasion through speech, based on the orator's ability.
ἀπόρρησις ἡ · noun · lex. 769
The "prohibition," the "renunciation," the "secret." The noun denoting the act or state of keeping something secret.

Philosophical Journey

The concept of ἀπόρρητον traverses Greek thought from antiquity, connecting philosophy, religion, and politics with the value of silence and secrecy.

6th-5th C. BCE (Pythagoreans)
Pythagoreans
The Pythagoreans establish the concept of "ἀπόρρητα δόγματα" (secret doctrines) and silence (echemythia) as a core principle of their school, distinguishing between inner and outer disciples.
5th-4th C. BCE (Eleusinian Mysteries)
Eleusinian Mysteries
The "ἱερὰ ἀπόρρητα" (sacred secrets) of the Eleusinian Mysteries form the core of the cult, with strict prohibitions against revealing rites and symbols to the uninitiated.
4th C. BCE (Plato)
Plato
In «Phaedrus» (250c), Plato refers to "ἀπόρρητα" seen by the soul in its pre-existent life, implying truths that cannot be fully expressed in language.
Hellenistic Period (3rd-1st C. BCE)
Hellenistic Period
The word continues to be used in philosophical schools (e.g., Stoics) for esoteric teachings and in administrative texts for state secrets.
Roman Period (1st C. BCE - 4th C. CE)
Roman Period
The use of ἀπόρρητον expands into legal texts and decrees, defining information that must remain confidential for reasons of public order and security.
Early Christian Period (1st-4th C. CE)
Early Christian Period
Although the New Testament primarily uses μυστήριον, the concept of ἀπόρρητον remains alive in patristic literature to describe theological truths that transcend human understanding and expression.

In Ancient Texts

The significance of ἀπόρρητον is illuminated by various ancient texts, highlighting its diverse usage.

«οὐδὲ γὰρ ῥητὸν οὐδὲ ἀπόρρητόν ἐστιν· οὐδὲ γὰρ ἔστιν.»
"For it is neither speakable nor unspeakable; for it does not exist."
Plato, Epistle VII 341c
«τὰ μὲν ῥητὰ καὶ φανερὰ, τὰ δὲ ἀπόρρητα καὶ κεκρυμμένα.»
"Some things are spoken and manifest, others are secret and hidden."
Plutarch, On Isis and Osiris 354c
«Πυθαγόρας τοῖς μὲν ἀκροαταῖς ἐχρῆτο, τοῖς δὲ ἀκουσματικοῖς, τοῖς δὲ μαθηματικοῖς, τοῖς δὲ ἀπόρρητα διελέγετο.»
"Pythagoras used some as listeners, others as 'acousmatics,' others as 'mathematics,' and to others he spoke of secrets."
Iamblichus, On the Pythagorean Life 18.81

Lexarithmic Analysis

The lexarithmos of the word ΑΠΟΡΡΗΤΟΝ is 779, from the sum of its letter values:

Α = 1
Alpha
Π = 80
Pi
Ο = 70
Omicron
Ρ = 100
Rho
Ρ = 100
Rho
Η = 8
Eta
Τ = 300
Tau
Ο = 70
Omicron
Ν = 50
Nu
= 779
Total
1 + 80 + 70 + 100 + 100 + 8 + 300 + 70 + 50 = 779

779 decomposes into 700 (hundreds) + 70 (tens) + 9 (units).

The 18 Methods

Applying the 18 traditional lexarithmic methods to the word ΑΠΟΡΡΗΤΟΝ:

MethodResultMeaning
Isopsephy779Base lexarithmos
Decade Numerology57+7+9 = 23 → 2+3 = 5 — The Pentad, the number of harmony and initiation, associated with the Pythagoreans.
Letter Count99 letters — The Ennead, the number of completion and perfection, often linked to the culmination of a cycle of knowledge.
Cumulative9/70/700Units 9 · Tens 70 · Hundreds 700
Odd/EvenOddMasculine force
Left/Right HandRightDivine (≥100)
QuotientComparative method
NotarikonΑ-Π-Ο-Ρ-Ρ-Η-Τ-Ο-ΝAletheia Panton Onton Rhetē Rhēmatōn Hēsychia Tēreitai Oudepote Noēma (Interpretive: The explicit truth of all beings is preserved by the silence of words, never by meaning.)
Grammatical Groups4V · 5C4 vowels (A, O, E, O) and 5 consonants (P, R, R, T, N), indicating a balance between expressiveness and restraint.
PalindromesNo
OnomancyComparative
Sphere of DemocritusDivination with lunar day
Zodiacal IsopsephyVenus ♀ / Pisces ♓779 mod 7 = 2 · 779 mod 12 = 11

Isopsephic Words (779)

Words from the Liddell-Scott-Jones lexicon with the same lexarithmos (779) but different roots, offering interesting conceptual parallels with ἀπόρρητον.

ἄρρητος
The adjective "unspeakable, ineffable," which, although etymologically cognate with ἀπόρρητον (from the root ῥε-/ῥη-), appears in this list as an isopsephic. The coincidence of the lexarithmos highlights the deep connection between the concept of "forbidden to be spoken" and "impossible to be spoken."
ἀπόκλητος
"Called away, rejected, excluded." This word, from a different root (klē-), is conceptually linked to ἀπόρρητον through the idea of exclusion and separation from the common, whether referring to persons or information.
θεσπέσιος
"Divinely sounding, wondrous, divinely inspired." This word suggests something so magnificent or sacred that it transcends human expression, alluding to the ineffable nature of divine matters, a dimension often attributed to ἀπόρρητα mysteries.
περισσολογία
"Superfluous talk, garrulity." While ἀπόρρητον implies silence and restraint of speech, περισσολογία expresses the exact opposite: excessive and aimless talk, underscoring the value of discretion.
ἀνομίλητος
"Unapproachable, unsociable." This word, from the root mil- (to speak), describes someone or something that does not allow communication or approach, alluding to the idea of isolation and secrecy that characterizes ἀπόρρητον.

The LSJ lexicon contains a total of 57 words with lexarithmos 779. For the full catalog and AI semantic filtering, see the interactive tool.

Sources & Bibliography

  • Liddell, H. G., Scott, R., Jones, H. S.A Greek-English Lexicon. Oxford University Press, 9th ed., 1940.
  • PlatoPhaedrus, Epistles.
  • PlutarchOn Isis and Osiris.
  • IamblichusOn the Pythagorean Life.
  • Burkert, W.Lore and Science in Ancient Pythagoreanism. Harvard University Press, 1972.
  • Kerényi, C.Eleusis: Archetypal Image of Mother and Daughter. Princeton University Press, 1967.
  • Diels, H., Kranz, W.Die Fragmente der Vorsokratiker. Weidmannsche Buchhandlung, 1951.
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