merth
Merth is a term that can refer to several different concepts depending on the context. In some historical or dialectal usage, it is an archaic form of the word "mirth," meaning amusement or laughter. This usage is largely obsolete in modern English.
In a more specific context, merth may refer to a surname. Like many surnames, it likely originated
Additionally, "Merth" can appear as part of place names, particularly in Wales, where it is often combined