Words with 'sti' at the start and 'a' at the end

What is an interesting word from this list?
Dictionarypedia feels that 'stigma' to be the most strange word on this list. According to the Oxford dictionary, 'stigma' means "1. A mark made with a burning iron; a brand. 2. Any mark of infamy or disgrace; sign of moral blemish; stain or reproach caused by dishonorable conduct; reproachful characterization. The blackest stigma that can be fastened upon him. Bp. Hall. All such slaughters were from thence called Bartelmies, simply...".

How many letters are in the longest word from this page?
'Stichomythia' is the biggest word that Dictionarypedia could find, consisting of 12 characters

What's the maximum number of words you could construct using words that start with 'sti' and end with 'a'?
It's possible to create 17 words using the specified combination.

What is the highest number of points you could get in Scrabble using this list of words that start with 'sti' and end with 'a'?
One can make 'stilyaga' for a score of 12 in Scrabble.

Which word on this page ranks as the most common?
'Stigma' is the most popular word from this list, ranked 27944^th most common word.