niggle - /ˈnɪgəl/ Pronunciation Key - Show Spelled Pronunciation[nig-uhl] - verb
1. To be preoccupied with trifles or petty details.
2. To find fault constantly and trivially; carp.
1. When doing rewrites it is sometimes hard to make just needed changes and not niggle over every word and comma.
2. Some wives niggle their husbands to death; before long they often end up without husbands to nag.