Words that start with 'e' and contain 'gr'

Is there a word on this page that stands out as the most popular?
There's 'engraved', which is the 11800^th most common word.

How many characters does the largest word on this page contain?
The largest word located by Dictionarypedia is 'electroencephalographically'. It has 27 letters.

What's the highest scoring word in Scrabble with the above combination ?
Since there are a massive 255 entries, your best option is to choose 'exograph' scoring 21 points.

Is there a word from this page of word that starts with 'e' and includes 'gr' which might be deemed as unique?
Our team feel 'eagrass' to be the most weird word. The definition of 'eagrass' is as follows: "See Eddish. [Obs.]". Credit goes to Oxford Dictionary.

In total, how many words are possible to make using this combination of letters?
Altogether, there are 255 words.