Words that contain 'd' and end in 'py'

What's the largest word you can create with words that have 'd' in and end with 'py'?
The word 'cardiotrophotherapy' has 19 characters.

How many words could you make using the combination specified?
In total, there are 60 words.

What is the most common word for this page?
Ranking as the 82297^th most common word, you will want to make sure you've got 'dumpy' in your repertoire.

What's a strange word from the word combinations possible on this page?
The most interesting word based on a recently conducted poll is 'radioscopy'. 'Radioscopy' is defined as "Direct observation of objects opaque to light by means of some other form of radiant energy, as the Röntgen rays. -- Ra`di*o*scop"ic (#), *scop"ic*al (#), a.", according to the dictionary.

In Scrabble, what is the highest score you can get from words containing 'd' and ending with 'py'?
From this combination of letters, the best word you ought to play is 'mudpuppy' scoring 20 points in Scrabble.