Know now that I have procured the answer many years past; but once upon a time, back in the early stages of high school, someone posed me the following, which took me three whole years to correctly cipher.
There are three words in the English language that end in the letters 'gry'. The first two are angry and hungry. The third is something that you use every day. The answer is in the riddle.
Let me know what your individual take/s on this is/are. If it goes as distant as I think it will, I may be tempted to offer a reward for the first correct answer.