If you’re someone who fears that words such as sparsile (of a star, not included in any constellation), primifluous (that which flows first), and oporopolist (fruit-seller) are about to become extinct, then you need to check out Save the Words.
Brought to you by Oxford Dictionaries, the page is a patchwork quilt of vocabulary words that could go to that big dictionary in the sky. Mouse over one and you’ll be shown the definition and how to use it in a sentence (“I had to listen to my mother’s blateration [blabber, chatter] for thirty minutes just because I came home at 2 a.m.”). Then you’ll be offered the opportunity to adopt the word, which means you assume responsibility for using it as much as possible in an effort to bring it back. There are ideas for places to “spread the word” and you can also sign up for a word-a-day.
Personally, I’m torn between saving senticous (prickly, thorny) and snollygoster (a shrewd, unprincipled person). If anyone finds one that tickles their fancy, please report back! Bonus points if you can use it in a sentence.
Hat tip to Mighty Quinn and Krodamai.