factitious

The word "qat" came up in conversation today, while talking with ladypimpernel and electricpaladin about a friend who's currently in Yemen. I'd only seen the word in the context of Scrabble before, and had to ask about the spelling to be sure that this was the same thing.

Oh, apparently it refers to a drug of some kind. Its Wikipedia article notes the relevance to Scrabble, which strikes me as right and proper.