Why do we use the word heat to denote a preliminary qualifying race? Hundreds of years ago, a single instance of heating something such as a piece of metal over a fire for metalworking was called a heat. Later that term was applied to “a round...
Preheat, as in preheat the oven, doesn’t mean “heat before heating.” It’s a single word with a concrete idea, akin to “prepay.” It’s perfectly acceptable to use. This is part of a complete episode.