There are more words but they are from Tolkien's earlier conceptional periods. Tolkien likely changed these words as he evolved the aesthetics and completeness of the languages. You may even find languages that Tolkien later rejected. Do not mix words from different time periods unless you are familiar with the phonetic developments.
urc
noun. goblin
garma
noun. wolf
A (rejected) noun for “wolf” developed from the (rejected) root ᴹ√ƷARAM (Ety/ÑGARAM), most likely from primitive ✱✶ʒaramā [ɣaramā] given its cognates. It is an example of the Danian syncope, with second unstressed [a] vanishing after the identical vowel. It is also one of the Danian words for which a long final vowel developed into short final [a]. Finally, it provides an example of how [[dan|[ɣ] became [g]]] in Danian.
Below: Tolkien's Late Period (1950–1973). These are from Tolkien's late conceptual period — his most settled forms of the languages. Prefer these over the earlier ones above when composing new text.
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.