Words that contain 'en' and end in 'um'

In total, how many possible words can you make using this combination of letters?
In total, you can make exactly 264 words.

Which word from this list consists the highest number of characters?
The largest word is 18 letters long, which is 'chamaepericlymenum'.

Which word that has 'en' in and ends with 'um' is the most interesting?
Dictionarypedia feels 'proscenium' to be the most unusual word on this page. The dictionary defines it as "1. (Anc. Theater) The part where the actors performed; the stage. 2. (Modern Theater) The part of the stage in front of the curtain; sometimes, the curtain and its framework. Proscenium arch, the framework around the front of the stage.".

In Scrabble, what's the most points you can get from words containing 'en' and ending with 'um'?
With an overwhelming 264 entries, you should try 'hymenium' scoring 18 points in total.

Is there any word on this page that sticks out as the most popular?
We've identified that 'millennium' is the 11160^th most common word.