urc

noun. goblin

A noun for “goblin” developed from primitive ᴹ✶orku, also attested in its plural form yrc (Ety/ÓROK). The change of [o] to [u] is hard to explain, as noted by Helge Fauskanger (AL-Nandorin/urc). In an earlier version of the entry Tolkien wrote Dan. orc (EtyAC/ÓROK), which is the expected form. The simplest explanation is that this form actually developed from a variant primitive form ✱✶urku. There is a similar issue with Ilk. urch, so perhaps this variant was used by those Eldar who did not complete the journey to Valinor.