Gnomish
cam
adjective. bent, bowed; submissive, humble
cam(m)a-
verb. to stoop, bend, bow, cower; to submit
mô
noun. hand
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 {camba- >>} G. cam(m)a- in the Gnomish Lexicon (GL) of the 1910s with glosses “stoop, bend, bow, cower - submit” (GL/25), probably based on the early root ᴱ√KAẆA “stoop” in the contemporaneous Qenya Lexicon (QL/45). Beneath it was a deleted verb {G. cav-} “to bend”. This deleted verb reappeared later in GL, with the glosses “to bend, make stoop” and its second appearance was also deleted (GL/25). Beneath its second deletion was a verb G. cavra- that Tolkien said was equivalent to camba-; an earlier entry for cavra- was glossed “stoop, cower”, but the glossed entry for cavra- was deleted.
Neo-Sindarin: In Tolkien’s later writings the roots √KAW and √KAM had different meanings, so I don’t think any of these early verbs can be salvaged. I would instead use the neologism ᴺS. logra- “to stoop, bow, cower; to submit” based on the later root √LOK “bend”, a neologism I coined in 2018.