Words with 'e' as the first letter that end with 'erf'

What's the highest number of points you could get in Scrabble from this list of words that start with 'e' and end with 'erf'?
As there is just 1 result to pick from, you can only use the word 'enserf' which totals 9 points.

In total, how many words is it possible to make using these particular combinations of letters?
Oh no, there is only 1 word.