1. An appeal to some supernatural power to inflict evil on someone or some group: The evil person spoke an execration to threaten the group that was camping in the forest.
2. Hate coupled with disgust: Shirley only had feelings of anger and execration for the people who destroyed the neighbor's house with fire.
3. Something that is cursed or loathed: The headlines in the newspaper presented execrations regarding the fraudulent banker who stole so much money.
4. Etymology: from Latin execrationem, a noun of action from execrari, "to hate, to curse"; from ex-, "out" + sacrare, "to devote to holiness, to consecrate"; from sacer, "sacred".