1635, in the meaning defined above
borrowed from Spanish adiós, earlier a Dios seas, a Dios seades, literally, "may (you) be (commended) to God"
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ad interim copyright
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“Adios.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/adios. Accessed 3 Mar. 2021.
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Britannica English: Translation of adios for Arabic Speakers
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