Words that start with 'pes' and contain 't'

Which word on this page ranks as the most popular?
Rating as the 14991^st most common word, you will want to ensure you've got 'pestilence' in your repertoire.

What is the highest score you could get in Scrabble using this list of words that start with 'pes' and include 't'?
For 15 points in Scrabble, it is possible to use 'pestify'.

Which word in particular on this page has the largest character count?
'pestilentialness', made up of 16 characters.

Is there a specific word from this page that could be thought of as interesting?
Dictionarypedia considers 'pest' to be the most unusual word. The conventional definition of 'pest' is as follows: "1. A fatal epidemic disease; a pestilence; specif., the plague. England's sufferings by that scourge, the pest. Cowper. 2. Anything which resembles a pest; one who, or that which, is troublesome, noxious, mischievous, or destructive; a nuisance. "A pest and public enemy." South.". Credit goes to Cambridge Dictionary.

How many words could one put together using this combination of letters?
There are a maximum of 55 entries covering all combinations.