Action
Action as a genre is characterized by sequences with high-energy and sometimes fast-paced that evoke sensations like excitement and certain energy rushes for some of their consummers. It is pretty characteristic for being quite active and try to maintain the excitement in their audience in any kind of work of entertainment. Since it refers just to the pace of a narrative, this genre can also blend with some other genders or tropes as Science Fiction, Fantasy or even Horror sometimes.
Etymology
The word Action comes from the Latin actio, which means "to act" or "to do". It was until the 17th century that the term started to be used in theater to refer to physical expression and dynamic scenes, and later, at the beginning of the 20th century, the word took its current meaning by being used for describing fast-paced and exciting films and literature works, being in the mid of the same 20th century when it was properly established as a genre for film and later used on varied platforms to refer the same.