mighty
伾 centers on great physical strength or power: being mighty, robust, or formidable.
伾 combines the person radical 亻 with 丕, which likely contributes the sound and carries a sense of largeness or greatness, together suggesting a mighty person.
A person 亻 beside 丕, a shape associated with greatness: imagine a towering, mighty figure standing firm.
For ヒ, picture a mighty person letting out a powerful 'hee' sound as they lift a heavy weight: hee -> ヒ.