niggling

English

Verb

niggling

1. Present participle of niggle.

Adjective

niggling

1. petty
   • 1863, Charles Darwin's letter to J.D.Hooker, 14th of July 1863

     My dear Hooker, I am getting very much amused by my tendrils, it is just the sort of niggling work which suits me, and takes up no time and rather rests me whilst writing.