The word "dispatch" generally refers to the act of sending off or away with speed. This can involve sending messages, goods, or people to a specific destination quickly and efficiently. It also can mean dealing with someone or something efficiently or effectively.
The word "dispatch" comes from the Middle English "dispechen," which derives from the Old French "despatcher," and originally from the Latin "dispatiare," meaning "to free from" or "to divide up." The components of the Latin word include "dis-" meaning "apart" and "patiare" meaning "to suffer" or "to pack."