The register rules: Achérōn

Evidence dossier 003 — Achérōn. Every exhibit catalogued, every ruling stated with its grounds.

At a Glance

• Canonical form: Achérōn
• Original script: Ἀχέρων
• Pantheon: Greek
• Convention: the restored-stress convention: acute and circumflex for pitch, macrons for vowel quantity, exactly as the sources write
• False forms on record: 3
• Contested forms: none attested
• Series: The Canonical Register, No. 3 of 287

The Evidence

Exhibit 1 — the attestation. The name is attested as Ἀχέρων, in the attestation LSJ and Beekes, Etymological Dictionary of Greek give us. On the evidence, it means "River of woe". The canonical transliteration is Achérōn.

Exhibit 2 — the preserved marks. e → é (Acute on e); o → ō (Macron: long vowel). Each is verifiable against the sources named in the attestation.

Exhibit 3 — the flattened form. The plain form acheron is not false — it is a fallback, and the register is exact about what that means. In systems that cannot carry diacritics (legacy databases, older tooling, parts of the address-bar pipeline) the flattened form is the accepted vehicle, and the rulebook names it explicitly as the final rung of the fallback hierarchy: full restoration first, circumflex where attested, macron-only by the academic standard, an attested variant, and only then plain ASCII.

What the fallback status forbids is promotion: acheron may carry the name where marks are impossible, but it may not represent the name where marks are possible. Every mark it drops — e → é, o → ō — is a fact the sources recorded. A fallback is a vehicle, never the primary.

Exhibit 4 — struck from the record: Á́chérōn. Origin: the English ear — English speakers slam the first syllable of every borrowed name (DEL-fi, MY-cene), so the accent drifts forward online. Grounds: moves the stress from e (where the Greek puts it) to A — a different word with a different rhythm; the sources stress e and nothing else.

Exhibit 5 — struck from the record: Achéron. Origin: the half-restoration — well-meaning posts that keep the accent because it looks Greek and drop the macron because it looks optional. Grounds: drops the vowel length on o → ō: the quantity is as attested as the accent (Macron: long vowel), and without it the meter of the name collapses.

Exhibit 6 — struck from the record: Achêrōn. Origin: the circumflex habit — writers who learned that "the little hat means Greek" and apply it wherever an acute belongs. Grounds: the source carries an acute (oxeia, a rising tone), not a circumflex (perispomene, a rise-fall): the two marks are different facts about pitch, and only the acute is attested on e.

Exhibit 7 — the physical record. The Nekromanteion, an oracle of the dead, was located near the mouth of the Acheron in Thesprotia (modern Mesopotamos). Excavations revealed an underground labyrinth used for incubation and necromantic ritual. The river itself, with its springs and underground passages, reinforced the belief that this was an entrance to Hades. Roman travelers including Pliny and Pausanias noted the site.

Exhibit 8 — the continuing record. Achérōn is the river whose name means grief. It appears in Dante's Inferno, in Romantic poetry, and in every metaphor that turns a dark stream into the threshold of death.

The Convention's Own History

The marks this register defends were not invented for typesetting. Ancient Greek carried a melodic pitch accent, and the acute and circumflex were added by Alexandrian scholars — Aristophanes of Byzantium, tradition holds — precisely to preserve it when the spoken language began to level. Vowel quantity (the macron's concern) is older still: it changes meter, meaning, and grammar, and the poets of the Theogony depend on it. To drop either class of mark is to drop two millennia of deliberate preservation. The restored-stress convention simply continues the oldest documented project in European scholarship: keeping the sound of Greek alive in its letters.

The Protocol's Position

Can the canonical form live in the address bar? Almost always, yes. IDNA 2008 admits every mark this register defends — the DNS stores them as `xn--` punycode and modern browsers render them natively. The real frictions are practical, not legal: some registrars stock only part of the IDN space, so a theoretically valid name can be temporarily unbuyable; and stacked combinations (an acute riding a macron) remain awkward to type on mobile keyboards even where the protocol accepts them.

The project's answer is a ranked ladder, not a compromise: the full restoration first, then attested fallbacks in descending order of completeness. The ladder's lowest rung, plain ASCII, is a vehicle for legacy systems — sanctioned, but never presented as the scholarly form.

The Verdict

Case closed on Achérōn: canonical, cited, and defended. The keyboard form acheron rides as the sanctioned fallback — and stays in that lane. The register's files remain open: if a source surfaces that changes any line of this entry, the entry changes. Until then, the temple at /sites/acheron/ holds the canonical form.

The docket for this ruling: 3 false forms ruled against, Á́chérōn first on the docket; 2 preserved marks verified: e → é, o → ō; no contested forms attested; the attestation rests on 6 cited sources — LSJ, Beekes, Etymological Dictionary of Greek, Homer, Odyssey.

The Register Continues

The register holds 287 entries like this one — each temple with its own ruling. Read the temple's founding dispatch for the story, its Restoration File for the philology, its Resonance File for the industries, or the whole archive end to end.

Continue the register — previous entry: Hāḇel (read it) · next entry: Achilleús (read it).

The Canonical Register is written from the same canonical record as the lexicon itself. If a false form is missing from this page, it is because the evidence does not support calling it false — or because we have not seen it yet. Show us, with a citation, and the register will answer.