Words that contain 'v' and end in 'er'

Which word that has 'v' in and ends with 'er' is the most popular word?
The most popular word is 'over', which is in fact the 100^th most common word in this list.

Which word from this page is the most unusual?
The most unusual word from this page is 'enslaver'. The dictionary defines it as "One who enslaves. Swift.".

What's the highest possible score you're able to get in Scrabble from this list of words containing 'v' and ending with 'er'?
With the number of words from which to select, you'll want to pick 'quaviver' which scores 23 points in total.

What's the maximum number of words one is able to put together using this combination of letters?
From this page of words containing 'v' and ending with 'er', there are 1,081 amazing combinations which are available overall.

What's the longest word you can make using words that have 'v' in and end with 'er'?
The longest word derived by Dictionarypedia is 'galvanothermometer'.