Which term signifies a favorable omen?

The term "auspice" originates from the ancient practice of interpreting the behavior of birds to predict future events, and it is closely associated with the idea of positive or favorable signs and omens. When someone speaks of something being done under auspices, it implies that the action is being carried out with a sense of support or approval, often indicating positive outcomes. This concept of favorable omens connects to the broader understanding of auspices as signs that foretell good fortune or help provide guidance.

In contrast, the other terms do not have the same association with favorable predictions. "Aspersion" refers to a derogatory remark designed to harm someone's reputation, "beatify" means to declare someone as blessed or worthy of veneration without explicitly implying a prediction of future events, and "assay" typically refers to the process of analyzing or testing substances to determine their composition, often used in a scientific context rather than one of omens or predictions. Therefore, "auspice" clearly signifies a favorable omen, making it the correct choice.