From Middle English ring, from Old English hring, from Proto-Germanic *hringaz, from Proto-Indo-European *(s)krengʰ-, extended nasalized form of *(s)ker-. Cognate with West Frisian ring, Low German Ring, Dutch ring, German Ring, Swedish ring, also Finnish rengas. rink.
From Middle English ringen, from Old English hrinġan, from Proto-Germanic *hringijaną. Cognate with Dutch ringen, Swedish ringa.
From a shortening of German Zahlring (coined by German mathematician David Hilbert in 1892). Apparently first used in English in 1930, E. T. Bell, “Rings whose elements are ideals,” Bulletin of the American Mathematical Society.
Image:Latex integers.svg|thumb|120px|The symbol [[ℤ represents the ring of integers.]]
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