S. Dior m.
The name of Thingol’s grandson and successor (S/180).
Conceptual Development: The name G. Dior appeared in the earliest Lost Tales, although without translation (LT2/240). In The Etymologies from the 1930s, Tolkien designated the name Dior as Ilkorin, a derivative of the primitive form ᴹ✶ndeuro with the meaning “successor” (Ety/NDEW), though initially the name was marked Ossiriandic (EtyAC/NDEW).
It is unclear whether this translation remained valid in Tolkien’s later writing, especially since he later added the sobriquet S. Eluchíl “Thingol’s Heir” to Dior’s name (S/188). Furthermore, the original etymology would not be valid for Sindarin, since primitive [eu] became [iu] in Old Sindarin and then became [ȳ] in Sindarin. Tolkien never provided another translation or etymology for this name, however.
References ✧ LotRI; PMI; SI; UTI; WJI
Ilk. Dior m. “Successor”
References ✧ Ety/NDEW; LRI; SMI; TII; WRI
|ᴹ✶ndeuro > Dior||[ndeuro] > [ndioro] > [ndior] > [dior]||✧ Ety/NDEW|
Dan. Dior m.
In The Etymologies from the 1930s, Tolkien first marked the name Dior as both Doriathrin and Ossiriandic (EtyAC/NDEW). He then changed the name so that it was only Doriathrin, perhaps because the diphthong [io] did not appear until very late in Ossiriandic.
Reference ✧ EtyAC/NDEW ✧ Oss. Dior
|ᴹ✶ndeuro > Dior||[ndeurō] > [ndeur] > [deur] > [deor] > [dior]||✧ EtyAC/NDEW|
G. Dior m.
References ✧ LBI; LT2I