Words with 'p' as the first letter that end with 'ses'

Which word that starts with 'p' and ends with 'ses' is the most common word in the dictionary?
The most common word for your request is 'purposes'.

What is the longest word you can derive with this list?
The longest word constructed by Dictionarypedia is 'parthenogeneses'. It consists of 15 characters.

How many viable words could one put together with this combination of letters?
On this list of words that start with 'p' and end with 'ses', there are 198 brilliant entries that are possible overall.

In Scrabble, what is the best score possible from words with 'p' as the 1st letter that end with 'ses'?
As there are a massive 198 entries, we'd suggest opting for 'plexuses' which scores 17 points.