Gnomish
dal
noun. cairn
dol-
verb. to dig
tâl
noun. foot
tûm
noun. valley
atha
cardinal. two
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 verb appearing as {dal- >>} dol- “dig” in the Gnomish Lexicon of the 1910s derived from the early root ᴱ√ndolo (GL/30). This root was glossed “delve” in the contemporaneous Qenya Lexicon (QL/65).