hang
挂 centers on suspending something from a point: hanging an object so it dangles freely.
挂 combines 扌 (hand) with 圭, which likely contributes the sound. The hand radical suggests the action of hanging something.
The hand radical 扌 beside 圭 looks like a hand hanging a jade tablet (圭) on a wall.
For ケイ, imagine hanging a heavy kettle (ケイ) by its handle: the hand 扌 lifts the kettle and hangs it up.