Small pieces or bites of food; or takes small bites of something.
Possibly from Middle Low German 'nib' or related to 'nib' (point), suggesting something done at the pointed end or in small sharp bits. The word emerged in English around the 1500s for small bites or eating small amounts.
The term 'nibblers' in marketing refers to customers who take free samples without buying—these people have an actual name in retail! Ecologists also study 'nibbling damage' to plants, which might not seem serious but can weaken plants over time.
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