Definition of the word burn up

The phrase "burn up" originally referred to the consumption of fuel by a flying machine or an engine in the late 19th and early 20th centuries. In aviation, "burning up" described the rapid depletion of fuel due to the intense demand of flight, while in engineering, it meant the complete consumption of fuel or a material by a chemical reaction, leading to its destruction or transformation. This term gained popularity during the pioneering years of air travel and was adopted by other fields, including sports, where it now refers to the rapid exhaustion of an individual's energy, strength, or stamina.