Looking at the official complete two-letter Scrabble word list, I cannot help but wonder whether they are even based on real English words. Are they?
Note: I realize the answer to this question may start going into more of a Boardgames realm, so feel free to restrict your answer to a rigidly EL&U answer. I only need to know if the words are English, or if they are based on English. I am not asking here how they were chosen.