A word for “sea” variously attested as gaear (PE17/027; PM/363; WJ/400), gaer (PE17/27; PE17/149), and aear (Let/386; RGEO/65) in later writings. Of these, I prefer gaear for purposes of Neo-Sindarin, reduced to gaer in compounds.
Possible Etymology: The presence or absence of the initial g- depends on whether the word’s root is √AY(AR) (as it appears in The Etymologies and some later writings) or √GAY(AR) (as it appears in other later writings). See the entry of the root √GAY(AR) for a discussion of this vacillation. Similarly, the form gaer appears primarily as an element in compounds, and can be explained as a reduced form of gaear in that context. For these reasons, this entry uses gaear as the ordinary Sindarin word for “sea”. This has the additional advantage of disambiguating it from the adjective gaer “dreadful”.
Conceptual Development: This word appeared as N. oer or oear “sea” in The Etymologies of the 1930s, reflecting the Noldorin sound change of ai to oe (Ety/AY). However name for the “Great Sea” was N. {Belegar >>} Belegaer in the narratives of this period (LR/19), and the name N. Rhûnaer “Eastern Sea” appeared in draft Lord of the Rings maps from 1943 (TI/307). The element N. oer did appear in the day-of-the-week name N. Aroeren “✱Sea-day” in drafts of The Lord of the Rings appendices, but this was revised to S. Oraeron (PM/130, 138).
The root √AYA and its extended form √AYAN were associated with “holy” and “blessed” things all the way back in Tolkien’s earliest conception of the languages. It appeared as ᴱ√AY̯A “honour, revere” in the Qenya Lexicon of the 1910s with derivatives like ᴱQ. Ainu/Aini “god/goddess” and adjectives ᴱQ. aina or ᴱQ. aira “holy” (QL/34). Gnomish equivalents appeared in the contemporaneous Gnomish Lexicon such as G. ain “god” and adjectives aistog “holy” or †air(in) (GL/18).
The Etymologies of the 1930s gave this root as ᴹ√AYAN with very similar derivatives ᴹQ. Ainu, Aini and aina (Ety/AYAN), except Ainu/Aini was translated “holy one, angelic spirit (m./f.)” reflecting Tolkien’s evolving conception of his Legendarium. In this period there was an unaugmented variant ᴹ√YAN with the derivatives ᴹQ. yána/N. iaun “holy place” (Ety/YAN). It is not clear whether the short form √AYA was valid in this period; there is nothing like aira “holy”, for example.
The root √AYA and √AYA-N reappeared in etymological notes from the late 1950s, variously glossed “blessed” or “treat with awe/reverence” (PE17/147, 149). The (re)appearance Q. airë “holy, holiness”, Q. aira “holy”, and S. aer “holy” in later writing beside Ainu/Aini further support the reintroduction of the short form of this root.
Neo-Eldarin: For purposes of Neo-Eldarin, the continued use of the root √AYA in Tolkien’s later writing might be used to justify the restoration of a number of religious words derived from the early root ᴱ√AYA in the 1910s.