Gnomish
rig
noun. a snarl, a sneer
rig-
verb. to twist, contort
riga i·wint
*twist the face
fim
adjective. clever, right hand
fath
noun. possession, property; rights, legality
gwandra
adjective. beautiful
mô
noun. hand
gwanin
adjective. beautiful
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
A verb appearing as G. rig- “twist, contort” in the Gnomish Lexicon of the 1910s (GL/65). It was clearly based on the early root ᴱ√RIKI from the contemporaneous Qenya Lexicon of similar meaning; compare ᴱQ. riqi- “wrench, twist” (QL/80). The Gnomish verb had a longer variant rictha- “contort, twist” which also had an extended meaning “confuse, disarrange, upset”.
Neo-Sindarin: The root √RIK “twist” survived in Tolkien’s later writings, so I would retain ᴺS. rig- “to twist, contort” for purposes of Neo-Sindarin, but I would also give it the extended meaning “✱to confuse, disarrange, upset” from its longer Gnomish variant.