Words that start with 'p' and contain 'sy'

Which word that starts with 'p' and includes 'sy' is the most popular word in the dictionary?
The most popular word in this list is 'psychological', which is actually the 12034^th most common word in this list.

What's the highest score you could get in Scrabble from this list of words that start with 'p' and contain 'sy'?
As there are tons of words to select from, your best choice is to go for 'psychony' scoring 21 points.

What is a peculiar word from this list of words that start with 'p' and include 'sy'?
Certainly one of the most weird words from this page is 'panpsychism'. The dictionary defines it as "The theory that all nature is psychical or has a psychical aspect; the theory that every particle of matter has a psychical character or aspect. -- Pan*psy"chic (#), a. -- Pan*psy"chist (#), n. -- Pan`psy*chis"tic (#), a. Fechner affords a conspicuous instance of the idealistic tendency to mysterize nature in...".

How many letters does the longest word on this page consist of?
The longest word that's possible to construct from this list is 'philosophicopsychological', which consists 25 letters.

How many words could you make using the combination of letters requested?
On this list of words that start with 'p' and include 'sy', you have 521 entries that are available.