This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
劥 is a rare character. It visually combines 亢 and 力, but its exact historical development is uncertain.
The kanji has no clear meaning, but its shape suggests strength (力) combined with something high or excessive (亢).
For コウ, imagine a strong person named Kou lifting a heavy weight: Kou -> コウ, and the 力 (power) component reinforces the idea of strength.