Words with 'a' as the first letter that end with 'ahn'

In Scrabble, what's the most points you can get using this list of words beginning with 'a' and ending with 'ahn'?
With sadly a single word to choose from, you can only play 'autobahn' scoring 13 points.

In total, how many words are available using this list?
It appears as though it's only possible to only make 1 word using the specified combination.