rubicon

Etymology
The noun is derived from the phrase. ’s crossing of the Rubicon, a small river in northeastern Italy, on 10 January 49, indicated his intention to start a civil war with. Rubicon is derived from, , possibly from , from , ultimately from , an allusion to the colour of the river caused by mud deposits.

The verb is derived from the noun.

Noun

 * 1) A limit that when surpassed cannot be returned from, or an action that when taken cannot be reversed.
 * 2)  Especially in bezique and piquet: a score which, if not achieved by a losing player, increases the player's penalty.
 * 1)  Especially in bezique and piquet: a score which, if not achieved by a losing player, increases the player's penalty.
 * 1)  Especially in bezique and piquet: a score which, if not achieved by a losing player, increases the player's penalty.
 * 1)  Especially in bezique and piquet: a score which, if not achieved by a losing player, increases the player's penalty.
 * 1)  Especially in bezique and piquet: a score which, if not achieved by a losing player, increases the player's penalty.
 * 1)  Especially in bezique and piquet: a score which, if not achieved by a losing player, increases the player's penalty.
 * 1)  Especially in bezique and piquet: a score which, if not achieved by a losing player, increases the player's penalty.
 * 1)  Especially in bezique and piquet: a score which, if not achieved by a losing player, increases the player's penalty.
 * 1)  Especially in bezique and piquet: a score which, if not achieved by a losing player, increases the player's penalty.
 * 1)  Especially in bezique and piquet: a score which, if not achieved by a losing player, increases the player's penalty.

Verb

 * 1)  Especially in bezique and piquet: to defeat a player who has not achieved the rubicon.