Elvish Plurals and Noun Cases: How Nouns Change in Quenya and Sindarin

Ask a hundred people to guess the plural of an Elvish word and most of them will bolt an -s onto the end, the way English does. Tolkien's two major Elvish languages don't work that way, and they don't work the same way as each other. Quenya adds endings — but the wrong ending marks you as a beginner just as fast as no ending at all. Sindarin barely adds anything; it changes the vowels sitting inside the word instead.

This is one of the few corners of Tolkien's invented grammar where we're not reduced to guessing. Sindarin's plural pattern is proven by dozens of real place-names and people-names printed across The Lord of the Rings itself — adan becomes edain, orch becomes yrch, and nobody has to speculate about it. Quenya's case system rests on thinner ice: most of what we know about it comes from one 1966 letter Tolkien wrote to a teenage fan named Dick Plotz, later published in the journal Vinyar Tengwar. That letter is detailed and internally consistent, but it is a single source, not a grammar textbook Tolkien polished for print. This post treats both systems honestly — showing you what's directly attested in the novels versus what rests on that one careful letter — and gives you real nouns from the site's own vocabulary lists to practice on.

Quick Answer: Quenya makes plurals by adding -r to nouns ending in -a (Elda → Eldar, "Elves") and -i to most other nouns (lassë → lassi, "leaves"), and it declines nouns for at least eight cases including genitive, dative, allative, and instrumental. Sindarin instead mutates the noun's internal vowels — adan → edain ("Men"), orch → yrch ("Orcs") — with no ending added at all.

---

Quenya plurals: the -r / -i split

Quenya plurals aren't random — which ending a noun takes depends almost entirely on the sound it ends in.

Nouns ending in -a take -r. This is the single most recognizable plural pattern in the entire language, because it produces the word Elves themselves use for their own kind: Elda (an Elf) becomes Eldar (Elves) — The Silmarillion. The same pattern gives us Vala becoming Valar, the Powers of the world (the plural appears constantly across The Silmarillion, including in the description of Varda as "Queen of the Valar"). If a Quenya noun's citation form ends in a bare -a, expect -r in the plural, not -s and not -i.

Nouns ending in other vowels, or in a consonant, take -i. The cleanest documented example is lassë ("leaf") becoming lassi ("leaves") — from the noun-declension table in Tolkien's 1966 letter to Dick Plotz, published in Vinyar Tengwar #6. This -i pattern is also where you see one of the most quietly moving lines in the whole trilogy: when Frodo raises the Phial in Shelob's lair he cries "Aiya Eärendil Elenion Ancalima!" — "Hail Eärendil, brightest of stars," in words he did not know he was speaking. Elenion is the genitive plural of elen ("star"), built on that same -i-family plural stem before the genitive ending is added — The Lord of the Rings, The Two Towers.

A rough table, using only nouns given in the project's own vocabulary set plus the two directly attested -r examples above:

Both forms of elen are on solid ground here: the genitive plural Elenion from Frodo's cry, and the plain plural eleni from Namárië itself — "Vardo tellumar nu luini yassen tintilar i eleni," "the domes of Varda beneath the blue vaults wherein the stars tremble." That is worth pointing out because it is unusual: for most nouns you will only find one or two of the possible forms in print, and the rest are inference.

The partitive plural and the dual

Quenya has two more number categories beyond the ordinary singular/plural split, and both come from the Plotz letter.

The partitive plural means "some of" a group rather than the whole group — English has no direct equivalent, but you can feel the difference between "the leaves fell" and "some leaves fell." Quenya marks it with its own ending, giving lasseli ("some leaves") alongside plain lassi ("the leaves," full set) — Plotz letter.

The dual number is for things that naturally come in pairs — hands, eyes, twins, or, in Tolkien's own worked example, the Two Trees of Valinor. The dual of alda ("tree") is aldu, and it survives outside the grammar letter entirely, baked into the Quenya calendar: the Elvish weekday devoted to the memory of the Two Trees is Aldúya, "Day of the Two Trees" — Appendix D, The Lord of the Rings. That's a genuinely independent confirmation of the dual system, since Appendix D was written and published separately from the Plotz correspondence and still shows the same -u dual marker. The ordinary dual ending is -t, as in máryat ("her two hands") in Namárië — "ve fanyar máryat Elentári ortanë," "like clouds her hands the Star-queen uplifted." The -u ending is the alternative, appearing where the stem already contains a t or d, which is exactly why alda gives aldu.

The Quenya case system: eight cases, one main witness

Here is where honesty about sourcing matters most. Quenya has more grammatical cases than English has ever had — English really only distinguishes subject/object/possessive ("he," "him," "his"), while Quenya marks direction, location, and instrument directly on the noun itself. But almost the entire case paradigm as we know it comes from one place: the letter Tolkien sent Dick Plotz in 1966, in which he laid out the full declension of lassë ("leaf") through eight cases. It's a rich, careful document — but it is one letter, not a grammar Tolkien revised for publication, and no other noun gets the same exhaustive treatment anywhere in his published papers. Treat the table below as "the fullest attested account we have," not "settled Quenya grammar."

Source for the full paradigm: Tolkien's 1966 letter to Dick Plotz, published in Vinyar Tengwar #6.

Two of these cases you don't have to take on the strength of the Plotz letter alone, because they show up in a poem Tolkien himself published: the lament Galadriel sings as the Fellowship leaves Lothlórien, Namárië, printed in The Lord of the Rings.

• Instrumental, confirmed in running text: "Ai! laurië lantar lassi súrinen" — "Ah! like gold fall the leaves in the wind." Súrinen is súrë ("wind") plus the instrumental ending -inen, matching the -nen pattern from the Plotz paradigm almost exactly, just added to a different stem shape. This is the single strongest piece of independent evidence that the instrumental case in the letter reflects how Tolkien actually used the case in verse, not just how he described it in a private explanation.
• Genitive plural, confirmed in running text: the same poem's second line, "yéni únótimë ve rámar aldaron," — "long years numberless as the wings of trees" — ends with aldaron, the genitive plural of alda ("tree"): "of trees." That's the -a-stem plural (aldar) plus a genitive ending layered on top, and it's sitting right there in a poem Tolkien published and translated himself.

So: don't distrust the case system — it clearly existed in Tolkien's mind in a stable, working form, and the pieces that do surface in his verse match the letter's paradigm closely. Just be precise, when you're teaching or writing about it, that "eight fully worked cases" is Plotz-letter testimony, corroborated in only two spots (instrumental, genitive) by actual published poetry.

Sindarin: no endings, just mutation

Sindarin throws the entire strategy out. Where Quenya adds an ending, Sindarin usually changes the vowels already inside the word and leaves the outside alone. Linguists call the process i-affection (or i-mutation): historically, Sindarin's ancestor language did form plurals with an ending, but that ending was an -i sound that pulled the vowels earlier in the word toward the front of the mouth before the ending itself eroded away and disappeared, leaving only its fingerprint on the vowels behind.

This is genuinely the best-attested piece of grammar covered in this whole post, because you don't need a private letter to prove it — the proof is printed across The Lord of the Rings in ordinary character and place names.

Look at the pattern across the whole table and it becomes predictable rather than mysterious: back, rounded vowels (o, a, au) consistently get pulled forward and up, landing on e or y. It's the same physical process in every single word — the mouth shape for the lost plural -i sound bleeding backward into the syllable before it.

The two most famous names in the entire legendarium are themselves a plural pair demonstrating this exact rule: Dúnadan, "Man of the West," singular, becomes Dúnedain when Tolkien is talking about the people as a whole — the Rangers, Aragorn's kin, the descendants of Númenor. If you've ever seen "the Dúnedain" used as if it were simply a proper noun rather than a grammatically formed plural, now you know exactly what's happening inside it.

The plural article and mutation

Sindarin has a definite article in two forms: i for singular ("the"), and in for plural. (Quenya has a definite article too, contrary to a persistent claim otherwise — Namárië gives us i eleni "the stars" and i yulma "the cup".) The Sindarin article doesn't just sit in front of the noun passively; like most Sindarin function words, it triggers consonant mutation on whatever follows it. The clearest widely-cited case is i Pheriannath, "the Halflings", from the praise at the Field of Cormallen — Cuio i Pheriain anann! Aglar'ni Pheriannath! Note that those are two different forms of the same word: Pheriain is the ordinary plural of perian, while Pheriannath is the collective, "the whole Hobbit-race", built with the -ath suffix. -ath is not a general plural ending, and using it as one is a common error. The lesson to take from it: in Sindarin, the article is not just a separate word you bolt on, it's part of the sound-system reshaping the noun phrase as a whole, the same spirit as the internal vowel-mutation that built the plural in the first place.

Common mistakes

• Adding -s. Neither language does this, ever. It is the single fastest way to signal "I didn't check a source" in any Elvish phrase, tattoo, or wedding vow.
• Using -ath as an ordinary plural. It is a collective: Pheriannath means "the Hobbit-folk as a whole", not "some hobbits". The plain plural is Pheriain.
• Using Quenya's -r/-i endings on a Sindarin noun. They're unrelated systems. Writing something like "orchi" or "adanor" mixes the wrong language's plural machinery onto the wrong stem — Sindarin nouns don't take suffix plurals at all in the standard pattern.
• Mis-forming edain. People who've heard "Dúnedain" often reverse-engineer a wrong singular ("Dúnedan," dropping the vowel shift) or a wrong plural of adan on its own ("adani," borrowing Quenya's -i). The correct pair is adan / edain — full internal vowel change, no ending.
• Treating the case system as more settled than it is. It's fine — good, even — to use the eight-case Plotz paradigm when writing or building lesson material. It's not fine to present it as if Tolkien printed a finished Quenya grammar; say where it comes from.
• Assuming every plural is attested. Many commonly cited "Quenya plurals" online are reasoned extensions of the pattern rather than words Tolkien wrote — ondoi ("stones") and nári ("fires") are typical examples, inferred from the rule but never printed. Extending a proven rule to a new noun is a legitimate and useful exercise — as long as you label the result as an inference, not a canon form.

Practice: pluralize these yourself

Try these using only the rules above, before checking the notes underneath. All the singular forms come straight from this site's own vocabulary data.

1. Quenya: Nár (fire) — consonant-final, so which ending?
2. Quenya: Ondo (stone) — vowel-final (not -a), so which ending?
3. Quenya: Cala (light) — ends in -a, so which ending?
4. Sindarin: Gond (stone) — apply i-affection: o → ?
5. Sindarin: Nan (valley) — apply i-affection: a → ?
6. Sindarin: Aew (small bird) — this one has no consonant to mutate in a simple pattern; what's the honest answer?

Notes on the answers: (1) Nár would take -i by the consonant-stem rule, giving a reasoned form nári — not directly attested, so treat it as a pattern-based guess, not canon. (2) Ondo would also take -i, giving ondoi by the same reasoning — again unattested, inferred only. (3) Cala ends in -a, so the -r pattern applies, giving a reasoned calar — following the same rule that gives us the real, attested Eldar and Valar, but calar itself isn't a form Tolkien wrote down. (4) Gond — here honesty matters more than a clean answer: Sindarin's exact mutation for every consonant-final noun isn't uniform or fully published for gond specifically, so the responsible answer is that no attested plural of gond exists in Tolkien's papers — Gondor itself is a compound ("Land of Stone"), not a plural. (5) Same caveat for nan — no attested plural survives; by the general pattern you'd expect the vowel to front toward e, but that's an extrapolation, not a citation. (6) Aew is the fairest answer in the set: Tolkien left no attested plural for it at all, and that's a perfectly good thing to say out loud rather than invent one.

That last exercise is really the point of the whole post: the grammar rules are real and checkable, but not every word has been run through them in print. Knowing the difference is what separates a careful Elvish learner from a word-generator.

People Also Ask

How many noun cases does Quenya have?

At least eight are attested in detail: nominative, genitive, possessive, dative, allative, ablative, locative, and instrumental, laid out in full for the noun lassë in Tolkien's 1966 letter to Dick Plotz. Two of them — genitive and instrumental — are independently confirmed in the published poem Namárië.

Does Quenya use -r or -i to form plurals?

Both, split by the noun's ending: -a nouns take -r (Elda → Eldar, Vala → Valar), while nouns ending in other vowels or consonants take -i (lassë → lassi).

What is the Sindarin plural of adan?

Edain. Sindarin forms plurals by mutating the vowels inside the word rather than adding an ending — the same process turns Dúnadan into Dúnedain and orch into yrch.

Can I just add -s to make an Elvish word plural, like in English?

No — this isn't part of either language's grammar. Quenya uses the -r/-i endings above; Sindarin changes the internal vowels instead of adding anything at all.

Does Quenya have a dual number, separate from singular and plural?

Yes. The clearest example is aldu, the dual of alda ("tree"), preserved in the Quenya weekday name Aldúya, "Day of the Two Trees," from Appendix D of The Lord of the Rings.

Why does Sindarin orc become yrch and not orchs?

Because Sindarin plurals shift the vowel inside the noun instead of attaching an ending — a process called i-affection. The rounded o in orch fronts to y, giving yrch, the same shift that turns onod into enyd and naug into noeg.

Related Reading

• Quenya vs. Sindarin: Which Should You Learn? — for readers deciding which grammar system to invest in first
• Elvish Grammar: Quenya Basics — the wider grammar picture this post's case system fits into
• Elvish Grammar: Sindarin Basics — Sindarin's mutation system beyond just plurals
• Sindarin Grammar: The Complete Guide — a fuller treatment of Sindarin's consonant mutations
• Quenya Pronunciation: The Complete Guide — useful before tackling case endings out loud
• Tolkien's Elvish Languages: The Complete Guide — where Quenya and Sindarin sit in Tolkien's wider invented-language project

None of this sticks from reading a table once — it sticks from using it. The free lessons at /learn work real Quenya and Sindarin nouns into actual sentences, case endings and all, so you're applying the pattern instead of just memorizing it.