Early Quenya
karkapolka
noun. boar, *(lit.) tusk-pig
úro
noun. boar
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.
The word ᴱQ. karkapolka “boar” appeared in the Qenya Lexicon of the 1910s as a combination of ᴱQ. karka “fang, tooth, tusk” and ᴱQ. polka “pig” (QL/48), hence literally “✱tusk pig”.
Conceptual Development: The word for “boar” in the Early Qenya Word-lists of the 1920s was ᴱQ. úro (PE16/132), but its derivation is unclear.
Neo-Quenya: I’d use ᴺQ. carcapolca for “boar” in Neo-Quenya, as its etymology is more transparent.