Euphemisms

Euphemisms.

What an ugly word! And it means a nice way to say something negative or unpleasant. Like when we say someone has "passed on" instead of died. Some better examples:
"barf" instead of puke;
"eccentric" instead of insane;
"went away" instead of committed to an institution;
"put to sleep" instead of euthanize.

Wait! Euthanize is a nice way to say kill, and it's related to the word euphemism.

Eu phe mis (u)m is definitely from the Greek language.