Gnomish
laud
noun. flood; high tide; tide, motion of the sea
u laud u laith hasta unweg
*neither flood nor time waits for anyone
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 noun appearing as G. laud in the Gnomish Lexicon of the 1910s with glosses “1) flood, 2) high tide, 3) tide, motion of the sea”, the third meaning also assigned to a longer variant G. olaud or olod, all of these based on the early root ᴱ√LUTU (GL/53). The longer variant appears as oland [sic], olod “tide, motion of sea” later in GL (GL/62), but I believe oland is a slip or misreading for olaud.
Conceptual Development: Since √LUT “float” survives in Tolkien’s later writings (VT42/18; Ety/LUT), I would retain ᴺS. laud for purposes of Neo-Sindarin, but only for the limited sense “tide, motion of the sea”. For “flood, high tide” I would use the later word duinen.