Question: list of words that are rarely used?
Answer: We no longer make reference to our baldrics because it would be difficult to find someone who still carries a bag of horns and swords slung over one shoulder.
There are some rare words, however, that still tickle the ear and amuse the mind. ... 
Farctate. ... 
Philodox. ... 
Gramercy. ... 
Cavil. ... 
Churlish. ... 
Frisson.