The word "扑朔" is formed as a disyllabic compound originating from the classical Chinese poem "Mulan Ci", specifically from the line "雄兔脚扑朔", where it depicted the fluttering movement of a rabbit's feet. The character "扑" contributes its core meaning of pouncing or flapping, while "朔" here primarily functions as a phonetic element, detached from its literal sense of "first day of the lunar month", to create a descriptive binome. Through lexicalization from this literary context, the combination evolved to denote obscurity or complexity, often used in the fixed idiom "扑朔迷离".