An informal farewell expression meaning goodbye, often used in a playful or childish manner.
Likely baby talk or nursery language, possibly imitating the gesture of waving goodbye. The word appears in various forms across many languages, suggesting it may derive from natural sound-making or gestural communication.
Baby talk words like 'tata' often persist in adult language because they're emotionally comforting and universally understood. Similar goodbye sounds exist across cultures, suggesting that certain vocalizations are so natural to human communication that they emerge independently worldwide.
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