Words that contain 'er' and end in 'ss'

In Scrabble, what's the best score you can get using words containing 'er' and ending with 'ss'?
With an enormous 1,861 entries, your best choice is 'cherkess' which scores 17 points.

How many letters does the biggest word from this list contain?
'regeneratoryregeneratress', which consists of 25 characters.

What is the maximum number of words you can make using this combination of letters?
From this list of words that contain 'er' and end in 'ss', you have 1,861 entries which are possible altogether.

Is there any word on this page that stands out as the most common?
The most popular word is 'nevertheless', which is actually the 3006^th most common word in this list.

Is there an example word from this page of word that has 'er' in and ends with 'ss' which might be thought of as unusual in any manner?
A good example of an unusual word from this list goes to 'southerliness'. It means "The quality or state of being southerly; direction toward the south.".