Danaos being a term for the Greeks. In Virgil's Aeneid, II, 49, the phrase is said by Laocoön when warning his fellow Trojans against accepting the Trojan Horse. The full original quote is quidquid id est timeo Danaos et dona ferentis, quidquid id est meaning "whatever it is" and ferentis being an archaic form of ferentes. Commonly mistranslated "Beware of Greeks bearing gifts".
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