soar
鶱 centers on the action of flying upward or soaring, specifically describing a bird taking flight and rising high.
鶱 combines 鳥 (bird) with a phonetic component that likely contributed the sound and the idea of rising or flying upward. The exact historical development of the upper component is uncertain.
The bottom part is 鳥 (bird). The upper part looks like a roof with something inside, but imagine it as a bird bursting upward from under a cover, soaring into the sky.
For ケン, picture a soaring bird that looks like a kite, and think of the English word 'kite' but with a 'ken' sound: ken -> ケン. The bird soars high like a kite.