Definiția și Sensul lui "in name only"

What is the origin of the idiom "in name only" and when to use it?

The idiom "in name only" originated from the idea of something being designated or referred to by a particular name or title, but lacking the corresponding qualities, characteristics, or substance typically associated with that name. The phrase signifies that the reference to the name is merely symbolic or nominal, without any real or significant presence or effect.The idiom is commonly used to describe situations where something is claimed or described as being a certain way, but in reality, it does not truly embody or fulfill the expectations or requirements associated with that designation.