From the Greek "ethos":
* Ethics: The moral principles that govern a person's behavior or the conducting of an activity.
* Ethical: Relating to moral principles or the branch of knowledge dealing with these.
* Ethically: In a way that is morally right or acceptable.
* Ethos: The characteristic spirit of a culture, era, or community.
* Ethnocentric: Believing in the superiority of one's own ethnic group or culture.
* Ethnographic: Relating to the scientific description of peoples and cultures.
* Ethnography: The scientific description of peoples and cultures.
From the Latin "eth":
* Ethnical: Relating to the character or customs of a particular nation or people.
* Ethnology: The study of the characteristics of different peoples and their cultures.
Other words with "eth":
* Aesthetic: Relating to beauty or artistic taste.
* Anaesthetic: A substance that reduces or eliminates sensitivity to pain.
* Aesthetically: In a way that relates to beauty or artistic taste.
Remember that some of these words have different meanings depending on context. If you're unsure about the meaning of a word, it's always best to check a dictionary.