Excessively talkative or prone to talking too much, especially about trivial matters.
From Latin garrulus, meaning talkative or chattering. The word has uncertain origins but may be related to onomatopoeia of constant noise. It entered English through Romance languages during the Renaissance.
Garrulus became famous in bird taxonomy—the genus name for some sparrows is Passer garrulus because they're so loud and chatty. Linnaeus knew exactly what he was doing when he named them!
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