Gnomish
rog
masculine name. Rog
rôg
adjective. doughty, strong
grôg
noun. demon
graug
noun. demon
rag-
verb. to break asunder, burst
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. rag- “break asunder, burst” in the Gnomish Lexicon of the 1910s (GL/64), perhaps based on the early root ᴱ√RAKA “pile up”, though the meaning doesn’t match (QL/78).
Neo-Sindarin: The Quenya verb Q. rac- “to break” appears in Tolkien’s writings of the 1960s (MC/223), so I think this Gnomish verb can be salvaged as ᴺS. rag- “to break (asunder), burst”. For example, Fiona Jallings used rag- for “break” in her A Fan’s Guide to Neo-Sindarin (FGNS).