Origin: Greek suffix -ism
Euphemism has 2 different meanings across 1 category:
an inoffensive or indirect expression that is substituted for one that is considered offensive or too harsh
The use of a word or phrase to replace another with one that is considered less offensive, blunt or vulgar than the word or phrase which it replaces.
The word euphemism comes from Ancient Greek, originally meaning the practice of using words that bring good omens by avoiding unlucky speech. It is built from roots meaning "well" and "voice" or "talk."