| Date: | 1600-1700 |
| Origin: | Perhaps from a Scandinavian language |
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nig‧gle1

1 [transitive] if something niggles you, you keep worrying about it or feeling annoyed about it and you cannot forget it [↪ bug]:
Something's been niggling her all day.
Something's been niggling her all day.2 [intransitive] to argue or make criticisms about small unimportant details :
She niggled over every detail of the bill.
She niggled over every detail of the bill.



