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

Is there any word on this page that sticks out as the most common?
We're able to confirm that 'pains' is the 3633^rd most common word.

Which word in particular from this list has the largest letter count?
The longest word is 13 characters, which is 'preascertains'.

In Scrabble, what's the highest possible score you can get from words beginning with 'p' and ending with 'ins'?
From this combination of letters, one could make 'pumpkins' which scores 18 in Scrabble.

In total, how many words are available using this list?
All in all, one can assemble 60 words.

Is there an example of a word from this page that could be thought of as unique?
The most peculiar word based on a recently conducted poll is 'pains'. 'Pains' is defined as "Labor; toilsome effort; care or trouble taken; -- plural in form, but used with a singular or plural verb, commonly the former. And all my pains is sorted to no proof. Shak. The pains they had taken was very great. Clarendon. The labored earth your pains have sowed and tilled....", according to the English dictionary.