Definition & Meaning of "hat in hand"

What is the origin of the idiom "hat in hand" and when to use it?

The origin of the idiom "hat in hand" can be traced back to customs and etiquette of the past, particularly during the 17th and 18th centuries. In those times, removing one's hat was a sign of respect and subservience. It was customary for individuals to greet someone of higher social standing or authority by removing their hat as a gesture of deference. The act of approaching someone with "hat in hand" came to symbolize a display of humility and respect, indicating a willingness to show deference and seek forgiveness or assistance. It is commonly employed when seeking assistance, forgiveness, permission, or favor from someone in a position of authority or power.