Words that contain 's' and end in 'i'

What's the biggest word you can construct using words that have 's' in and end with 'i'?
The word 'brachistocephali' is made up of 16 characters.

In Scrabble, what is the highest number of points possible using words containing 's' and ending with 'i'?
With an extensive 881 entries, you'll want to try 'kazatski' which scores 25 points in total.

In total, how many words are possible to make using the combination requested?
There are up to a maximum of 881 entries on this page.

Is there a word on this page that jumps out as the most common?
There's 'si', which is the 565^th most common word.

What's a weird word from the combinations possible on this list?
We consider 'mistigri' to be the most weird word you can put together. It means "A variety of the game of poker in which the joker is used, and called mistigris or mistigri.".