'Obrigado eu' ou 'obrigado você': qual é o certo?

Você poderia responder "de nada", mas quando acaba de pagar a compra e ouve um "obrigado" do atendente, vem aquela vontade de dizer...

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"Obrigado você" ou "obrigado eu"?

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Para sanar essa dúvida, precisamos dar um passo para trás!

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"Obrigado" vem do verbo "obrigar", derivado do latim obligare.

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Por isso, em sua raíz, significa algo como "ligado moralmente", expressa uma dívida.

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Ou seja, quando alguém te diz "obrigado", está dizendo que, por conta de algo que você fez a essa pessoa, ela agora deve uma retribuição.

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Voltando à dúvida original do início, é por isso que o correto é responder "obrigado eu"

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Dessa forma, é como se estivesse dizendo "obrigado fico eu" – e, assim, a pessoa não lhe deve nada.

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Do contrário, se você responde "obrigado você", é como se estive reafirmando que, de fato, o interlocutor está em dívida com você.

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Exemplos

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