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

saptha-

verb. to dig, bite into

A verb appearing as G. saptha- “to dig, to bite into” in the Gnomish Lexicon of the 1910s based on the early root ᴱ√SAPA “dig, excavate” (GL/67).

Neo-Sindarin: The root √SAP reappeared in Tolkien’s later writings, but for purposes of Neo-Sindarin I would adapt G. saptha- as a basic verb ᴺS. sab- “to dig” to avoid questions of how its phonetics would have changed in later Sindarin.