ᴹQ. ilfirin adj. “immortal” (Category: Immortal)
Conceptual Development: Neither this word or its elements appear in Tolkien’s later writings, but its Sindarin cognate S. alfirin “immortal” does appear as the name of a flower (LotR/875, PE17/100, Let/402). Tolkien may have revised the etymology and meaning of the Sindarin word, however.
Reference ✧ Ety/PHIR ✧ “immortal”
|firin||“dead (by natural cause)”||✧ Ety/PHIR|
|ᴹ✶ilpirin > ilfirin||[ilpʰirin] > [ilɸirin] !!! [ilfirin]||✧ Ety/PHIR|