A Doriathrin noun for “holly” attested only in the plural forms regin and region (Ety/ERÉK). It also appeared as an element in the word regorn “holly-tree”. It seems that the latter word replaced reg in the singular, and the original survived only in the plurals, as suggested by Helge Fauskanger (AL-Doriathrin/regorn).
Doriathrin
region
place name. *Hollin
regornion
place name. Hollin
reg
noun. holly
dôr
noun. land
A Doriathrin noun for “land” (EtyAC/NDOR) apparently from primitive ᴹ✶ndorē (Ety/NDOR). If its primitive form indeed had a short [o], then this word may be an example of how short vowels sometimes lengthened in monosyllables in Ilkorin.
garth
noun. realm
A Doriathrin noun meaning “realm” derived from the root ᴹ√ƷAR or possibly ᴹ√GAR (Ety/ƷAR), perhaps from a primitive form ✱✶ɣarda or ✱✶garda given its cognates ᴹQ. arda and N. ardh. Likely the [[ilk|[d] became [ð] after [r]]] and then the [[ilk|final [ð] became [θ]]], a derivation that is supported by the (rejected) earlier entry Dor. garth (dh) in The Etymologies (EtyAC/ƷARA). These probable developments were noted by Helge Fauskanger (AL-Doriathrin/garth).
thind
adjective. grey
An adjective for “grey” derived from primitive ᴹ✶thindi (Ety/THIN) because primitive final vowels vanished in Ilkorin.
gell
noun. sky
A Doriathrin noun for “sky” derived from the root ᴹ√ƷEL (Ety/ƷEL), probably from a primitive form ✱✶ʒellē [ɣellē] based on its cognates. It is a clear example of how [[ilk|initial [ɣ] became [g]]] in Ilkorin.
hedhu
adjective. grey
A Doriathrin adjective for “grey” written heðu in The Etymologies, and derived from the primitive form ᴹ✶khithwa [kʰitʰwa] (Ety/KHIS). This word illustrates several interesting phonetic changes in Ilkorin.
The [[ilk|[i] became [e] before the final [a]]].
Both the aspirates became voiceless spirants: [kʰ-] > [x-] and [-tʰ-] > [-θ-].
Later the [[ilk|initial [x-] became [h-]]].
Meanwhile the [[ilk|medial [-θ-] voiced to [-ð-]]] (“dh”).
The [[ilk|primitive final [a] was lost]].
Afterwards, the resulting [[ilk|final [w] became [u]]].
In most other Doriathrin words, a [[ilk|final [u] from [w] further developed into [o]]]; it is unclear why this change did not occur here.
lindon
place name. Musical Land
mâb
noun. hand
An Ilkorin and Doriathrin noun for “hand” derived from primitive ᴹ✶mapā (Ety/MAP, EtyAC/MAP), where the [[ilk|voiceless stop [p] voiced to [b] after the vowel]]. Since its primitive form had a short [a] and its Ilkorin form a long [ā] (EtyAC/MAP), this word is an example of how short vowels sometimes lengthened in monosyllables in Ilkorin.
tôr
noun. king
A noun for “king” derived from primitive ᴹ✶tār(ō), also appearing in its plural form tórin (Ety/TĀ, BAL). Tolkien said that it was “only used of the legitimate kings of whole tribes”, though apparently it also survived in compounds like Torthurnion “King of Eagles” (Ety/THOR) and Balthor “Vala-king” (Ety/BAL). It is an example of how [[ilk|[ā] became [ō]]] in Ilkorin, as noted by Helge Fauskanger (AL-Ilkorin/tôr).
A Doriathrin variation of Region appearing in The Etymologies from the 1930s (Ety/ÉREK). It was translated “Hollin” and appears to be the genitive plural of Ilk. regorn “holly-tree”.