Words that start with 'a' and contain 'heu'

Is there an example word from this page which could be thought of as unusual in any regard?
The most unusual word in this list is 'accoucheuse'. The general definition of 'accoucheuse' is as follows: "A midwife. [Recent] Dunglison.".

Which word in particular from this list has the highest letter count?
The longest word you could assemble from this list is 'arthrorheumatism', which contains 16 characters.

What's the total number of words one can put together using this list?
There are 11 words available using words that start with 'a' and include 'heu'.

In Scrabble, what is the highest score you can get from words that start with 'a' and include 'heu'?
For 12 points in Scrabble, one can use 'alpheus'.