Trivia

Today on the radio they had a trivia question....What are the only two words in the English language that have three double letters in a row?

I knew one of the words was bookkeeper, but could not think of the other word. Beekeeper? No. I kept trying to imagine what the other word could be. Imagine my surprise when I learned what the other word was - BOOKKEEPING!!!!

That's what I get for overthinking it.