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)”
Prepositions
Mutation
Triggered:
Vocalic
Nasal
Mixed
Stop
Liquid
Sibilant
Prep Etym. INF DEF Prep Etym. INF DEF
Relational an DATIVE ✶ana < √NÁ/ANA SG Directional na ALLATIVE ✶na < √NĀ/ANA
PL
nan GENITIVE √NÁ/ANA ten TERMINATIVE, up to, until √TEN
o from, coming from (genitive of origin) ✶ho < √HO SG od ABLATIVE, (away) from (here elsewards) ✶aw(d/t) < √WĀ/AWA
PL
ⁿdan back to/on/again, (back in return) against, down √NDAN ed out (of), forth √ET
ⁿdi beneath, under ✶ndī SG am up, towards the top of ✶amba < √AM
PL
o(h) about, concerning √OS dad down, towards the bottom of ✶data < √DAT
gu (together) with ✶wō < √WO SG thar across, athwart, over ✶tʰara < √THAR
PL
mo by (agent of) ✶mā SG tri through √TER SG
PL PL
be as, like ✶bai SG pela(h) along, by the boundary of √PEL + √AS
PL
sui as, like <? ✶sija SG Locational po on ✶pă < √PĀ/APA SG
PL PL
pen without, lacking √PEN or above √RŌ/ORO
eb save, excluding, except ✶hekʷā < √HEK nu under √NŪ/UNU SG
PL
Temporal fo before √PʰĀ SG mi in ✶mī < √MI/IMI SG
PL PL
cad after ✶kata < √KĀ/KATĀ im between ✶imbi < √MI/IMI
ab after ✶apa < √PĀ/APA sa beside, alongside, next (to) √AS
Locational ho in front of, before ✶kʷĀ SG mig among ✶miki < √MI/IMI
PL
pad behind ✶pata < √PĀ/PATA nef hither, on this side of ✶nebā < √NEB
adel behind, in rear of √TELES athar beyond √TʰAR
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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