Early Primitive Elvish
wiki
root. *corner
gwiki Reconstructed
root. *corner
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.
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.
Tolkien gave this root as WIKI in the Qenya Lexicon of the 1910s with one derivative ᴱQ. ’winka “corner, nook” (QL/104) but the root was listed together with the GW- roots and the ’ in its Qenya derivative seems to indicate its proper form would be ✱ᴱ√GWIKI. There are no signs of this root in Tolkien’s later writing.