Gnomish
bald
adjective. *worthy
cafol
adjective. bald
cafalon
adjective. bald, *(lit.) head-naked
bâl
adjective. worthy, important; great, mighty
falt
adjective. bare
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 adjective appearing as G. {bald >>} bâl “worthy, important; great, mighty” in the Gnomish Lexicon of the 1910s based on the early root ᴱ√vḷd (GL/21).
Neo-Sindarin: For purposes of Neo-Sindarin, I would adapt this as ᴺS. ball “worthy, important” to be equivalent ᴱQ. valda, as originally suggested by Elaran in a 2018-08-03 post to the Vinyë Lambengolmor Discord Server (VLDS). I would not use this word for “great, might”, however.