Words with 'f' as the first letter that end with 'nit'

What is the highest scoring word in Scrabble using the above combination ?
Since there are only a small number of words to pick from, you can only play 'furnit' scoring 9 points.

How many usable words are possible to make using this combination of letters?
On this list of words beginning with 'f' and ending with 'nit', you have 2 entries that are possible.

What's the longest word you can derive from words that start with 'f' and end with 'nit'?
The biggest word derived by Dictionarypedia is 'furnit'. It consists of 6 characters.