One of the seven sons of Feanor, a minorcharacter in Tolkien's The Silmarillion. Often listed along with Celegorm and Curufin, but absent from the account of the kidnapping of Luthien, he died along with this pair while assailing Elwing's forces.
If there's seven, and they're all in pairs, there has to be an odd one out, right? And it's this guy.
The process of failing to define a specific action, so you invent a word and submit the definition in hopes it becomes a real word.
Person A: The process of T-cell maturation in the thymus is crantinking
Person B: That's not a word
Person A: It will be once Oxford Dictionary get back to me so don't be so crantinking