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