First, keep the lists shorts, that makes it easier to remember.
Second, try to make an acronym out of the first letter of each word in a group.
For example:
LETTER
Literature
Elegance
Tenacity
Trepidation
Environmental
Reality
(I'm just using the first words that come to mind.)
This way, it may help you to remember them more easily if you have something to reference.
Also, you can try to use association games to remember words.
Quickly - think of a quick moving fox
Firmly - think of firm banana.
There are many ways to remember words. Sometimes merely associating them with another word can help.
I hope this gives you some good ideas.
~Samantha :)