要yào

要 (yào, "want/need") combines the character for "west" (西) at the top with "woman" (女) or a variation involving "flesh" (月) at the bottom, depending on the font. The etymology is debated — some scholars see it as depicting a woman holding something important at her waist, while others interpret it as a person carrying a burden. Regardless, the character evolved from meaning "waist" or "important" to its modern sense of "to want" or "must," showing how meanings can shift dramatically over time.