Words with 'gl' at the start and 'm' at the end

Which word from this page is the most unusual?
'Glum' definitely stands as the most weird word from our list of words that start with 'gl' and end with 'm'. The dictionary defines it as "Sullenness. [Obs.] Skelton. Moody; silent; sullen. I frighten people by my glun face. Thackeray. To look sullen; to be of a sour countenance; to be glum. [Obs.] Hawes.".

What is the max number of words one is able to construct using this combination of letters?
It is possible to make 38 words using the specified combination.

How many letters are in the largest word from this page?
The longest word that's possible to assemble from this list is 'gladstonianism', which is made up of 14 letters.

Which word that starts with 'gl' and ends with 'm' is the most common word in the dictionary?
There's 'gloom', which is the 4508^th most common word.

In Scrabble, what's the highest score possible using words beginning with 'gl' and ending with 'm'?
For a total of 20 points, one can use 'glyoxim'.