cynic

\ \ [16] Originally, the Cynics were a group of ascetic philosophers in ancient Greece. Their founder, around 400 BC, was Antisthenes, a follower of Socrates. They advocated the view that virtue and self-control are the highest good and, particularly under their later leader Diogenes, came to exhibit a contempt for the frailties of their fellow human beings that is traditionally said to have earned them their name: Greek kúōn meant ‘dog’ (it is related to English hound), and the philosophers were allegedly dubbed kunikós on account of their ‘dog-like’ sneering. A more prosaic but more likely explanation of the term is that it comes from the Kunósarge, the gymnasium where Antisthenes taught (perhaps later influenced by kúōn). English acquired the word via Latin cynicus.