discrete (adj) - constituting a separate thing; individual; distinct [dih-skreet]
BREAKDOWN: DIS- (away) + CRET- (to separate)
discrete math is the study of mathematical structures that are countable or otherwise distinct and separable, such as combinations or graphs
[COMMONLY CONFUSED] discreet means showing reserve in speech or behavior
“Put down the weight of your aloneness and ease into the conversation. Pay attention to everything in the world as if it's alive. Realize everything has its own discrete existence outside your story. By doing this, you open to gifts and lessons that the world has to give you.” —David Whyte
Cool! So does "cretin" come from someone whose behavior is so SEPARATE from acceptable behavior or is there another root (maybe originally an Athenian looking down their nose at someone from Crete, for ex)?