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.

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!