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.

Gnomish

tinta-

verb. to dance

A noun glossed “dance” in the Gnomish Lexicon of the 1910s (GL/70), clearly based on the early root ᴱ√TṆTṆ (QL/93), probably with [[g|short syllabic [ṇ] becoming [in]]]. It had a past form {tinti >>} tanti showing the development of [[g|long syllabic [ṇ̄] to [an]]].

Gnomish [GL/69; GL/70] Group: Eldamo. Published by

galtha-

verb. to kindle

A verb in the Gnomish Lexicon of the 1910s given as {galta- >>} galtha- “kindle”, apparently a transitive or causative variant of G. gal- “shine (golden)” (GL/37).

lalt

noun. dance

A noun appearing as G. lalt “a dance” in the Gnomish Lexicon of the 1910s (GL/52), clearly based on the early root ᴱ√LḶTḶ “dance” (QL/55), probably with [[g|long syllabic [ḹ] becoming [al]]].

Neo-Sindarin: For purposes of Neo-Sindarin, I would adapt this word as ᴺS. lilt for better compatibility with the later root ᴹ√LILT “dance”, as suggested by Fiona Jallings.

laltha-

verb. to dance

A word appearing as G. laltha- “to dance” in the Gnomish Lexicon of the 1910s, a verb form of G. lalt “a dance” (GL/52).

Neo-Sindarin: For purposes of Neo-Sindarin, I would adapt this word as ᴺS. liltha- for better compatibility with the later root ᴹ√LILT “dance”.

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.