c.1300, from O.Fr. opinion (12c.), from L. opinionem (nom. opinio) "opinion, conjecture, what one thinks," from stem of opinari "think, judge, suppose, opine," from PIE *op-"to choose ...
http://dictionary.reference.com/browse/opinion

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The WWW site of America's funniest radio show...The Large Morning Show in the Afternoon, starring Frank O. Pinion on 550 KTRS St. Louis!
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Opinion Home; FOX News Polls; O'Reilly Factor ; John Lott Jr. Judge Napolitano; Red Eye; Junk Science; Buzztracker ... Hot Topics Home to our most opinionated contributors, the FOX Forum brings ...
http://www.foxnews.com/opinion/index.html