Belated Pirate's Day post.
Because someone wondered where pirate-y words came from, here's this post!

avast - from Middle Dutch hou vast, hold fast: hou, houd, imperative of houden, to hold + vast, fast.

lubber - a clumsy person, or inexperienced sailor - from MidE lobur, lazy lout akin to lob, lout.

lob - among other things, slang for a clumsy dull person or lout - probably of Low German origin.

jib - a triangular sail stretching from the foretopmost head to the jib boom and (in small craft) to the bowsprit or the bow.

jib boom - a spar forming a continuation of the bowsprit.

bowsprit - a spar, extending forward from the stem of a ship, to which the stays of the foremast are fastened.

ENOUGH OF THAT FOR NOW.  Jeebus, enough lingo, eh?

corsair - a pirate, esp. along the Barbary Coast - F. corsaire, from Old Provençal corsari, from Old I. corsaro, from MedL cursarius, from cursus, plunder, from L run, course, from pp. of currere, to run.

buccaneer - a pirate, esp. in the West Indies during the 17th century - Word History: The Errol Flynn-like figure of the buccaneer pillaging the Spanish Main may seem less dashing if we realize that the term buccaneer corresponds to the word barbecuer. The first recorded use of the French word boucanier, which was borrowed into English, referred to a person on the islands of Hispaniola and Tortuga who hunted wild oxen and boars and smoked the meat in a barbecue frame known in French as a boucan. This French word came from a Tupi word meaning "a rack used for roasting or for storing things, or a racklike platform supporting a house". The original barbecuers seem to have subsequently adopted a more remunerative way of life, piracy, which accounts for the new meaning given to the word. Buccaneer is recorded first in 1661 in its earlier sense in English; the sense we are familiar with is recorded in 1690.

hornswaggle - We do not know the origin of hornswoggle. We do know that it belongs to a group of "fancified" words that were particularly popular in the American West in the 19th century. Hornswoggle is one of the earliest, first appearing around 1829. It is possible that these words were invented to poke fun at the more "sophisticated" East. Some other words of this ilk are absquatulate, also first appearing in the 1820s, skedaddle, first attested in 1861 in Missouri, and discombobulate, first recorded in 1916.

Pirate vocabulary, and more vocabulary.