As nouns the difference between quintessence and cup
is that
quintessence is a thing that is the most perfect example of its type; the most perfect embodiment of something while
cup is cup.
As verbs the difference between quintessence and cup
is that
quintessence is to reduce to its purest and most concentrated essence while
cup is to not attend a course, a class without permission of the teacher or
cup can be to temporarily or permanently cease to provide (electricity or water supply) or
cup can be to switch off (a breaker or fuse).