Well, this thread is ready to go on out to sea, and I've found a lovely ocean word I don't believe we have here:

spendrift

It's defined in Random House Word Menu:

spray swept by wind from waves during storm at sea...

and then an equally lovely term is given as a synonym:

spoondrift

...I can go to sleep on those two words, stormy though they may be. What do you call a word that sounds as though its one thing (e.g., spendrift and spoondrift sound laidback and easy), but is actually quite something else? Spoondrift just doesn't sound stormy at all to my ear.

Beach regards,
WordWave