vrijbuiter

Filibuster begins with Dutch vrijbuiter — vrij (free) + buit (booty) + -er (one who). A freebooter: someone who takes plunder freely. The word described the Dutch and English pirates who raided Spanish colonial shipping in the 16th and 17th centuries. The Spanish borrowed it as filibustero, and the French as flibustier.

In the 1850s, 'filibuster' took on a new American meaning: private military adventurers who launched unauthorized expeditions into Latin American countries to seize territory. William Walker, who briefly made himself president of Nicaragua in 1856, was the most infamous filibuster. The word still meant piracy — just on land instead of sea.

Then came the Senate. By the 1850s-60s, American legislators began using 'filibuster' for the tactic of holding the Senate floor with endless speech to block a vote. The metaphor was apt: a filibuster is a kind of legislative piracy, seizing control of the chamber by force of endurance rather than majority will.

The connection between pirates and parliamentarians is not accidental. Both exploit systems by finding loopholes. A pirate operates outside the law of nations; a filibusterer operates within the rules of the Senate but against their spirit. The word understood, from its Dutch origin, that freedom and plunder are closer than democracies like to admit.