Argentina

来自Big Physics

wiktionary

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From Latin argentum(“silver”) + the feminine of the adjectival suffix -īnus; in reference to the Río de la Plata ("silver river").


etymonline

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Argentina

South American nation, from Latin argentinus "of silver," from PIE root *arg- "to shine; white," hence "silver" as the shining or white metal. It is a Latinized form of (Rio) de la Plata "Silver River," from Spanish plata "silver" (see plate (n.)).