Words with 'ako' at the start and 'a' at the end

Which word in particular from this list has the largest character count?
The longest word is 10 letters, which is 'akolouthia'.

What is the highest scoring word you can play in Scrabble ?
With sadly a handful of words to choose from, you're obligated to go with 'akoasma' scoring 13 points.

In total, how many words are there using this combination of letters?
There are 3 effective words you're able to choose for words that start with 'ako' and end with 'a'.