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Rubicon

Rubicon a stream in NE Italy which marked the ancient boundary between Italy and Cisalpine Gaul. Julius Caesar led his army across it into Italy in 49 bc, breaking the law forbidding a general to lead an army out of his province, and so committing himself to war against the Senate and Pompey; the ensuing civil war resulted in victory for Caesar after three years.

In general use, rubicon came in the 17th century to mean a boundary or limit, and from the late 19th century, in the card-game of piquet, to denote an act of winning a game against an opponent whose total score is less than 100, in which case the loser's score is added to rather than subtracted from the winner's.
cross the Rubicon pass a point of no return, as Caesar led his army across the river forming the ancient boundary between Italy and Cisalpine Gaul; the expression has been current since the 17th century.

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"Rubicon." The Oxford Dictionary of Phrase and Fable. . Encyclopedia.com. 19 Aug. 2017 <http://www.encyclopedia.com>.

"Rubicon." The Oxford Dictionary of Phrase and Fable. . Encyclopedia.com. (August 19, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/rubicon

"Rubicon." The Oxford Dictionary of Phrase and Fable. . Retrieved August 19, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/rubicon

Rubicon

Ru·bi·con / ˈroōbəˌkän/ a stream in northeastern Italy that marked the ancient boundary between Italy and Cisalpine Gaul. Julius Caesar led his army across it into Italy in 49 bc, breaking the law forbidding a general to lead an army out of his province, and so committing himself to war against the Senate and Pompey. The ensuing civil war resulted in victory for Caesar after three years. ∎  [as n.] a point of no return: on the way to political union we are now crossing the Rubicon.

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"Rubicon." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 19 Aug. 2017 <http://www.encyclopedia.com>.

"Rubicon." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (August 19, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/rubicon-1

"Rubicon." The Oxford Pocket Dictionary of Current English. . Retrieved August 19, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/rubicon-1

Rubicon

Rubicon (rōō´bĬkŏn), Lat. Rubico, small stream that flows into the Adriatic and in Roman times marked the boundary between Cisalpine Gaul and ancient Italy. In 49 BC, after some hesitation, Julius Caesar crossed the Rubicon to march against Pompey in defiance of the senate's orders. He thus committed himself to conquer or to perish, and "to cross the Rubicon" now means to take an irrevocable step.

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"Rubicon." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 19 Aug. 2017 <http://www.encyclopedia.com>.

"Rubicon." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (August 19, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/rubicon

"Rubicon." The Columbia Encyclopedia, 6th ed.. . Retrieved August 19, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/rubicon

rubicon

ru·bi·con • n. (in piquet) an act of winning a game against an opponent whose total score is less than 100, in which case the loser's score is added to rather than subtracted from the winner's. • v. (-coned, -con·ing) [tr.] score a rubicon against (one's opponent).

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"rubicon." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 19 Aug. 2017 <http://www.encyclopedia.com>.

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"rubicon." The Oxford Pocket Dictionary of Current English. . Retrieved August 19, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/rubicon-2

Rubicon

Rubicon Ancient name for the River Fiumicino in n central Italy. It formed the border between Italy and Cisalpine Gaul. In 49 bc, Julius Caesar precipitated civil war by ‘crossing the Rubicon’ into Italy with his army, hence the modern phrase meaning to take an irrevocable step.

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"Rubicon." World Encyclopedia. . Encyclopedia.com. 19 Aug. 2017 <http://www.encyclopedia.com>.

"Rubicon." World Encyclopedia. . Encyclopedia.com. (August 19, 2017). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/rubicon

"Rubicon." World Encyclopedia. . Retrieved August 19, 2017 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/rubicon

Rubicon

Rubiconblacken, bracken, slacken •Sri Lankan •Alaskan, Gascon, Madagascan, Nebraskan •Aachen, darken, hearken, kraken, Marcan, Petrarchan •Interlaken •beckon, Deccan, pekan, reckon •Mencken •awaken, bacon, betaken, forsaken, Jamaican, mistaken, partaken, shaken, taken, waken •godforsaken •archdeacon, beacon, Costa Rican, deacon, Dominican, Mohican, Mozambican, Puerto Rican, weaken •quicken, sicken, stricken, thicken, Wiccan •silken •Incan, Lincoln •brisken, Franciscan •barbican • Rubicon • Gallican •Anglican •Helicon, pelican •basilican, Millikan, silicon •publican • pantechnicon • Copernican •African • American • hurricane •lexicon, Mexican •Corsican • Vatican • liken •Brocken, Moroccan •falcon, Lorcan, Majorcan, Minorcan •Balcon, Balkan •gyrfalcon •awoken, bespoken, betoken, broken, foretoken, oaken, outspoken, plain-spoken, ryokan, spoken, token, woken •heartbroken •Lucan, toucan •Saarbrücken • Buchan • Vulcan •drunken, Duncan, shrunken, sunken •Etruscan, molluscan (US molluskan), Tuscan •Ardnamurchan • lochan

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"Rubicon." Oxford Dictionary of Rhymes. . Encyclopedia.com. 19 Aug. 2017 <http://www.encyclopedia.com>.

"Rubicon." Oxford Dictionary of Rhymes. . Encyclopedia.com. (August 19, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/rubicon-0

"Rubicon." Oxford Dictionary of Rhymes. . Retrieved August 19, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/rubicon-0