Words that contain 'pp' and end in 'ix'

How many words are available using these particular combinations of letters?
2!

What's a peculiar word from this list of words that have 'pp' in and end with 'ix'?
We feel that 'appendix' to be the most weird word you can construct. 'Appendix' is defined as "1. Something appended or added; an appendage, adjunct, or concomitant. Normandy became an appendix to England. Sir M. Hale. 2. Any literary matter added to a book, but not necessarily essential to its completeness, and thus distinguished from supplement, which is intended to supply deficiencies and correct inaccuracies. Syn. --...", according to the English dictionary.

In Scrabble, what's the highest number of points possible using this list of words that have 'pp' in and end with 'ix'?
As there is merely 2 entries to pick from, you can only play 'appendix' which scores 20 points.

How many characters does the biggest word from this page consist of?
'Mesoappendix'

What is the most popular word that has 'pp' in and ends with 'ix' in the dictionary?
The most popular word is 'appendix', which happens to be the 30889^th most common word in the dictionary.