Words with 'k' as the first letter that end with 'is'

Which is the most interesting word that starts with 'k' and ends with 'is'?
Standing as the most interesting word on this page is 'kenogenesis'. The common definition of 'kenogenesis' is as follows: "Modified evolution, in which nonprimitive characters make their appearance in consequence of a secondary adaptation of the embryo to the peculiar conditions of its environment; -- distinguished from palingenesis. [Written also cænogenesis.]". Credit goes to Oxford Dictionary.

What's the maximum number of words you are able to make using this combination of letters?
You can go with up to a maximum of 72 entries.

How many characters does the longest word on this list contain?
The biggest word that's possible to derive from words that start with 'k' and end with 'is' is 'keratoconjunctivitis', which contains 20 characters.

What is the highest scoring word in Scrabble available from this list ?
Using this combination, the best word to play is 'kyphosis' scoring 20 in Scrabble.