ar-

prefix. outside, beside

An Ilkorin prefix meaning “outside, beside”, the same as in Quenya and Noldorin (Ety/AR²).

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).

adar

noun. father

The Ilkorin word for “father” derived from primitive ᴹ✶atar[ă], also attested in its plural form edrin (Ety/ATA). It is identical to its Noldorin cognate N. adar having undergone similar phonetic changes from its primitive form, possibly ✱✶atară.

gelion

adjective. bright

An adjective meaning “bright” derived from the root ᴹ√GAL, the basis of the river name Gelion (Ety/GYEL). There isn’t enough information to deduce its primitive form, but Helge Fauskanger suggested ✱✶galjānā (AL-Ilkorin/gelion), which seems reasonably plausible.

gôl

noun. light

A (rejected?) Doriathrin noun for “light” derived from primitive ᴹ✶gālæ appearing in The Etymologies (Ety/KAL, EtyAC/KAL). According to Christopher Tolkien’s notes, it was part of a rejected etymology for the name Thingol, but it isn’t clear whether this noun was rejected or if it was just the etymology. Its long primitive vowel [[ilk|[ā] became [ō]]] as was the norm in Ilkorin.