Gnomish
drab-
verb. to labour, work; (impersonal) to irk, annoy
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. drab- meaning “labour, toil” in the Gnomish Lexicon of the 1910s (GL/30), with the sense “to irk, annoy” when used impersonally.
Neo-Sindarin: I retain ᴺS. drab- for (unpleasant) work for purposes of Neo-Sindarin, since it does not conflict with any later words or roots. [N.] muda- “labour, toil, ✱work” can be used for work without the unpleasant connotation.