The crossword solution for the term 'PLAGUE' with 'AT' is GNAW. The term 'PLAGUE' usually refers to a contagious and often fatal disease, such as the bubonic PLAGUE which killed millions of people in Europe during the Middle Ages. The term 'GNAW' means to bite or chew on something persistently. This could be seen as a metaphor for the PLAGUE, as it slowly and persistently spread throughout Europe, killing many people in its wake.