Words that contain 'a' and end in 'ps'

Which word in particular from this list has the highest letter count?
Try 'interrelationships'

What's the highest scoring word you can play in Scrabble ?
With so many words from which to select, we'd recommend going for 'exocarps' scoring 19 points.

How many acceptable words are possible to make from this combination of letters?
It is possible to assemble 366 words from the specified letter combination.

Is there a word from this page which could be thought of as interesting?
The most unusual word based on a recently conducted poll is 'dryobalanops'. The conventional definition of 'dryobalanops' is as follows: "The genus to which belongs the single species D. Camphora, a lofty resinous tree of Borneo and Sumatra, yielding Borneo camphor and camphor oil.". Credit to the Oxford Dictionary.

Which word that has 'a' in and ends with 'ps' is the most common word in the dictionary?
Rating as the 392^nd most popular word, you will want to ensure that you've got 'perhaps' in your arsenal.