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!

Gnomish

lobrob

noun. gallop; sound of horse’s feet

The Gnomish Lexicon of the 1910s had a noun lobrob “a gallop - the sound of horse’s feet” as an elaboration of G. lob “run, gallop (of animals)” (GL/54). The meaning of the second element is unclear, but might simply be an onomatopoeic variation of the initial element.

Neo-Sindarin: Since I retain ᴺS. lob- “gallop, ✱lope” for purposes of Neo-Sindarin, I would retain the noun ᴺS. lobrob as well.