·add. ·noun Finicky or pottering work;.
II. Niggling ·p.pr. & ·vb.n. of Niggle.
III. Niggling ·add. ·noun minute and very careful workmanship in drawing, painting, or the like, ·esp. when bestowed on unimportant detail.
Cutting awkwardly, trifling; also accompanying with a woman. ...
Dictionary of The Vulgar Tongue by Francis Grose