The origin of the word "long" referring to a person's height is not entirely clear, but it is believed to have originated from the Old English word "lang," which meant "tall" or "having a great height." This usage of the word may have evolved over time, with "long" becoming a colloquial way to refer to someone's height, especially in the context of physical appearance. The exact reason for this shift in meaning is not well-documented, but it may have been influenced by the fact that "long" is a simple, easily recognizable word that accurately conveys the concept of height.
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