Sindarin Consonant Mutation Tool

When a noun’s root starts with nd, mb, or ng, type it exactly that way (e.g., ngil, mbar) so the tool returns the correct results.
Tolkien also notes that the consonant j only survived at the beginning of words in Sindarin and later became the vowel i. Therefore, be sure to enter j for those nouns as well, so the proper mutation is applied.
I want to give a special thank you to Ellanto on Vinyë Lambengolmor, as this is his mutation chart.

Articles

Mutation Type Article Meaning Mutation
Vocalic i “the”
Nasal in “the (plural)”

Articles PE23

Mutation Article Meaning Mutation
Vocalic e “the”
Nasal in “the (plural)”
Prep Etym. INF DEF Prep Etym. INF DEF
Relational an DATIVE ✶ana < √NÁ/ANA SG Locational ho in front of, before ✶kʷĀ SG
PL PL
nan GENITIVE √NÁ/ANA pad behind ✶pata < √PĀ/PATA
o from, coming from (genitive of origin) ✶ho < √HO SG adel behind, in rear of √TELES
PL
ⁿdan back to/on/again, (back in return) against, down √NDAN po on ✶pă < √PĀ/APA SG
PL
ⁿdi beneath, under ✶ndī SG or above √RŌ/ORO
PL
o(h) about, concerning √OS nu under √NŪ/UNU SG
PL
gu (together) with ✶wō < √WO SG mi in ✶mī < √MI/IMI SG
PL PL
mo by (agent of) ✶mā SG im between ✶imbi < √MI/IMI
PL
be as, like ✶bai SG sa beside, alongside, next (to) √AS
PL
pen without, lacking √PEN mig among ✶miki < √MI/IMI
eb save, excluding, except ✶hekʷā < √HEK nef hither, on this side of ✶nebā < √NEB
Directional na ALLATIVE ✶na < √NĀ/ANA Temporal ab after ✶apa < √PĀ/APA
ten TERMINATIVE, up to, until √TEN cad after ✶kata < √KĀ/KATĀ
od ABLATIVE, (away) from (here elsewards) ✶aw(d/t) < √WĀ/AWA fo before √PʰĀ SG
PL
ed out (of), forth √ET Mutation Triggered: Vocalic Stop
thar across, athwart, over ✶tʰara < √THAR Nasal Liquid
pela(h) along, by the boundary of √PEL + √AS Mixed Sibilant
Note: CC- pattern as expected from the single consonants above.
1. Liquid mutation works the same when triggered by /l/, except for replacing the trigger’s [r] with [l]. See however [2].
2. Historically rs > ss, ls > lθ, with the latter further developing into ll, but likely not across a clitic/prefix boundary. As such we expect assimilated forms in liquid mutation, e.g. or + sarn > os sarn, adel + sarn > adel tharn.
3. In later Sindarin lh, rh, and wh resist all mutations.
4. In later Sindarin lenition of /m/ may be optional or altogether absent.
5. Initial gw- is /w/ in conservation Sindarin, with mutations as outlined. In later Sindarin it is commonly reanalysed as /gw/, with the following mutations: e·wend, i·ñ(g)wind, añ gwend, e gwend, or wend, a gwend.
6. A single attested word constitutes an exception in conservative/archaic Sindarin: rhass < ✶kʰrassē, mutated as follows: e chrass, i chrais, a chrass, ech rass, or chrass, a chrass. Later analogical normal rh.
Disclaimer: This tool is designed to help with mutations in Sindarin. While it strives for accuracy, please be aware that Sindarin is a constructed language with intricate rules, including vowel changes, consonant mutations, and contextual variations. Despite best efforts, certain renditions may be incorrect. It is advisable to cross-reference the results with trusted Sindarin resources or consult with knowledgeable linguists to ensure accuracy, especially for scholarly or formal work. If you encounter any errors or have suggestions, your feedback is valued!
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