What is the X in X-mas?
also hybristic, 1831, from Greek hybristikos "given to wantonness, insolent," from hybrizein, related to hybris (see hubris).
also hybris, 1884, a back-formation from hubristic or else from Greek hybris "wanton violence, insolence, outrage," originally "presumption toward the gods;" the first element probably PIE *ud- "up, out," but the meaning of the second is debated.
in Classical Athenian usage, the intentional use of violence to humiliate or degrade. The most famous example was the case of Meidias, who punched the orator Demosthenes in the face when the latter was dressed in ceremonial robes and performing an official function. Hubris could also characterize rape. Hubris was a crime at least from the time of Solon (6th century BC), and any citizen could bring charges against another party, as was the case also for treason or impiety. (In contrast, only a member of the victim's family could bring charges for murder.)