Words that contain 'at' and end in 'ry'

Which word that has 'at' in and ends with 'ry' is the most common word?
There's 'satisfactory' which is the 4578^th most common word.

Which word in particular on this page contains the highest number of characters?
The longest word is 19 characters long, which is 'pseudohallucinatory'.

Is there a specific word from this page of word that has 'at' in and ends with 'ry' which might be deemed as unique?
Our favorite peculiar word from this page is 'assentatory'. The conventional definition of 'assentatory' is as follows: "Flattering; obsequious. [Obs.] -- As*sent"a*to*ri*ly, adv. [Obs.]". Credit goes to Cambridge Dictionary.

In total, how many words are available using the combination requested?
There are a maximum of 979 entries.

What is the highest scoring word in Scrabble you can play for ?
With an overwhelming 979 entries, your best choice is 'vexatory' scoring 21 points.