Hubris
Hubris (, also hybris, from ancient Greek ὕβρις) means, in a modern context, extreme pride or self-confidence; in its ancient Greek context, it typically describes violent and excessive behavior rather than an attitude. When it offends the gods of ancient Greece, it is usually punished. The adjectival form of the noun hubris is "hubristic".
Hubris is usually perceived as a characteristic of an individual rather than a group, although the group the offender belongs to may suffer consequences from the wrongful act. Hubris often indicates a loss of contact with reality and an overestimation of one's own competence, accomplishments or capabilities, especially when the person exhibiting it is in a position of power.
Ancient Greek origin
In ancient Greek, hubris referred to actions that shamed and humiliated the victim for the pleasure or gratification of the abuser. The term had a strong sexual connotation, and the shame reflected on the perpetrator as well.
Violations of the law against hubris included what might today be termed assault and battery; sexual crimes; or the theft of public or sacred property. Two well-known cases are found in the speeches of Demosthenes, a prominent statesman and orator in ancient Greece. These two examples occurred when first Midias punched Demosthenes in the face in the theatre (Against Midias), and second when (in Against Conon) a defendant allegedly assaulted a man and crowed over the victim. Yet another example of hubris appears in Aeschines Against Timarchus, where the defendant, Timarchus, is accused of breaking the law of hubris by submitting himself to prostitution and anal intercourse. Aeschines brought this suit against Timarchus to bar him from the rights of political office and his case succeeded.