bay
bay at the moon: seemoon.
bay for blood demand punishment or retribution.
bring someone or something to bay trap or corner a person or animal being hunted or chased.
☞ This phrase was originally a medieval hunting term, referring to the position of the quarry when it is cornered by the baying hounds. An animal cornered in this way is said to stand at bay.
hold (or keep) someone or something at bay prevent someone or something from approaching or having an effect.