from The American Heritage® Dictionary of the English Language, 4th Edition
- Protagoras fl. fifth century B.C. Greek philosopher. Considered the first Sophist, he taught a philosophy based on his maxim "Man is the measure of all things.”
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A pre-Socratic Greek philosopher, who famously said man is the measure of all things.
Sorry, no etymologies found.