Early Primitive Elvish
leke
root. *slow; left
lene
root. *slow; left
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.
An unglossed root in the Qenya Lexicon of the 1910s with variants ᴱ√LEKE and ᴱ√LENE as well as derivatives like ᴱQ. lenka “slow, dull, stiff; left (hand)” (QL/52). There are no signs of these roots in Tolkien’s later writing, and they are inconistent with Tolkien’s later notion that Elves were ambidextrous and had no negative associations with “left” (VT49/6-8).