gry
The suffix referred to in the following puzzle:
Question: "Angry" and "hungry" are two words that end in "gry". What is the third word. Everyone knows what it means and everyone uses it every day. Look closely and I have already given you the third word. What is it?
Answer: "what".
Variants of this puzzle have circulated widely on the Internet for some years, usually in a corrupted form such as "Name three common English words ending in 'gry'", which has no third answer.
http://www.worldwidewords.org/articles/gry.htm. http://word-detective.com/gry.html.