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.

Middle Primitive Elvish

kam

root. bind, join

Middle Primitive Elvish [VT44/13] Group: Eldamo. Published by

rap

root. bind

A root in The Etymologies of the 1930s glossed “bind” but without derivatives (EtyAC/RAP). The element S. raph (“?rope”) in S. Udalraph “Stirrupless” (“?without (U-) foot-rope”) might be related (UT/313).

Middle Primitive Elvish [EtyAC/RAP] Group: Eldamo. Published by

wed

root. bind

A root in The Etymologies of the 1930s glossed “bind” with derivatives like ᴹQ. vére/N. gwaedh “bond, troth, compact, oath” and ᴹQ. vesta-/N. gwesta- “swear”, though Tolkien deleted Quenya derivatives of this root beginning with ves- saying they fell out of use due to conflict with ᴹ√BES “wed” (Ety/WED). This root might be a later iteration of the hypothetical early root ✱ᴱ√FEDE indicated by words in the Gnomish Lexicon of the 1910s like G. fedhin “bound by agreement; ally, friend” and G. fedhra- “unite in a band” (GL/34), but the 1910s and 1930s forms are rather dissimilar so it is hard to say.

Middle Primitive Elvish [Ety/WED; Ety/WEN; Ety/WŌ] Group: Eldamo. Published by

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.