A hypothetical root serving as the basis for early words like G. cog “claw, fist”, G. crog “hook” and G. croctha- “catch” (GL/27).
Early Primitive Elvish
laqa
root. catch
kok Speculative
root. catch
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.
A root in the Qenya Lexicon of the 1910s glossed “catch”, contrasted with ᴱ√LAPA “enfold” and ᴱ√LṆQṆ “catch, come on, light on, find, get” (QL/51, 55). There are no signs of this root in Tolkien’s later writing, and it may have been replaced by ᴹ√GAT of similar meaning (Ety/GAT).