Sindarin

Ithil

n. Moon

[LB/354.2802, LBI/Ithil.001, Let/425.4207, LotR/1114.3503, LotRI/Moon.002, MRI/Ithil.001, PE17/030.1802, PE17/039.3606, PE17/039.4005, PE17/121.0702, SA/sil.020, WJI/Ithil.001] Group: Eldamo. Published by

Raun

n. Moon

[VT48/07.1507-2] Group: Eldamo. Published by

Quenya

Rána

n. Moon, (lit.) Wayward

Another name of the Moon (usually Q. Isil), translated as “Wayward” (S/99). This name is a derivative of the root √RAN “wander” (UT/242).
Conceptual Development: The name ᴱQ. Rána appears in the earliest Lost Tales (LT1/192), though at this early stage its meaning and etymology were unclear. In Silmarillion drafts from the 1930s, ᴹQ. Rana appeared with a short a, with the translation “Wayward” (LR/240). The name also appeared with a short a in the Etymologies as a derivative of √RAN from primitive ᴹ✶Ranā (Ety/RAN). The long á was restored in Silmarillion revisions from the 1950s-60s (MR/130).
In some later notes, Tolkien said that Rána was the name of the spirit of the Moon rather than the Moon itself (VT42/13). Elsewhere this spirit was named Tirion, so this was probably a transient idea. In the indexes of The Silmarillion and The Unfinished Tales, Christopher Tolkien translated Rána as “Wanderer”, but the source of that translation is unclear.

[MR/130.3601, MR/198.0503, MR/376.3304, MRI/Rána.001, MRI/Rána.003, S/099.3111, SA/ran.005, SI/Rána.001, UT/242.3609, UTI/Rána.001, VT42/13.2202, VT47/11.3208] Group: Eldamo. Published by

Isil

n. Moon, (lit.) Sheen

[Let/425.3810, LotR/1114.3501, MR/130.3302, MRI/Isil.001, PE17/039.3610, PE17/121.0302, SA/sil.018, SI/Isil.001] Group: Eldamo. Published by

Adûnaic

nîlu

n. moon

A noun translated as “moon” and fully declined as an example of a Strong II noun (SD/431). It appears with both a short and long final -u, but Tolkien indicated that the form with long û is actually the personified form Nîlû “Man in the Moon” (SD/426), perhaps the Adûnaic name of Tilion. Tolkien also listed the “later forms Nil, Njūl” (SD/306), one of which may be the Westron word for “moon”, most likely Wes. nil. Andreas Moehn suggested (/NUL) that this noun may be related to nûlo/nûlu/nâlu, but given the evil connotations of these words (SD/306) and the different stem vowels, this seems unlikely to me.

[SD/241.2810, SD/306.0912, SD/426.1303, SD/428.24022, SD/428.2404, SD/431.0406, SD/431.0604, SD/431.0704, SD/431.0807, SD/431.0808, SD/431.0905, SD/431.0906, SD/431.1005, SD/431.1104, SDI2/Nîlû.004, SDI2/Nîlû.005] Group: Eldamo. Published by

Westron

nil

n. moon

A word listed as a later form of Ad. nîlu “moon” (SD/306) and therefore perhaps a Westron word, as suggested by Andreas Moehn (/NUL). The other “later form” Njūl is unlikely to be Westron, since there Westron seems not have palatalized consonants.

[SD/306.1202] Group: Eldamo. Published by

Valarin

Phanaikelūth

name. Moon, ‘bright mirror’

[WJ/401.3604] Group: Eldamo. Published by

Qenya

Silmo

name. the Moon

[GL/67.5803, LT1A/Silmo.001, LT1I/Silmo.001, PME/083.5809, PME/083.5810, QL/083.4001, QL/083.4002, SMI/Silmo.001] Group: Eldamo. Published by

Doriathrin

Istil

n. Moon

The Doriathrin word for the “Moon” developed from the primitive name ᴹ✶Ithil (Ety/I²), though it is unclear how the [st] developed. Perhap it was of the same origin as istil “silver light, starlight” (Ety/SIL).

[Ety/I².018] Group: Eldamo. Published by

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