What is the origin of the idiom "hold a grudge" and when to use it?

The idiom "hold a grudge" has its origins in the Middle Ages when the word "grutch" was used to refer to a complaint or grievance. Over time, "grutch" evolved into "grudge," taking on the meaning of harboring resentment or ill will due to a perceived wrong or injustice. The concept of "holding" onto negative feelings towards someone or something, much like holding onto an object, led to the development of the phrase "hold a grudge." It is used to describe situations where individuals continue to bear ill will or anger over past conflicts, disagreements, or perceived wrongdoings.