Definition & Meaning of "more power to {one's} elbow"

What is the origin of the idiom "more power to one's elbow" and when to use it?

The origin of the idiom "more power to one's elbow" is not precisely documented, but it is a common idiom in British English. The phrase likely evolved from the idea of needing more physical strength or energy to accomplish a task, particularly one that requires physical effort. The expression has a figurative meaning, which is to wish someone success or encourage them in their efforts, even if those efforts are not necessarily physically demanding. It is a way of expressing support and goodwill toward someone's endeavors, and it conveys the idea of providing them with the necessary energy, motivation, or strength to achieve their goals.