Words with 'ok' at the start and 'd' at the end

Which word from this list consists the largest number of characters?
The word 'okshoofd' has 8 characters.

In total, how many words could you make using these specific combinations of letters?
On this page of words beginning with 'ok' and ending with 'd', Dictionarypedia has discovered 2 brilliant entries which can be selected.

In Scrabble, what's the highest number of points possible from this list of words that start with 'ok' and end with 'd'?
The only solution is 'okshoofd' for a total score of 19 points.