strong, fierce
勍 centers on intense, forceful strength: being strong in a fierce or formidable way.
勍 combines 京 (likely a phonetic element) with 力 (strength), suggesting a strong or fierce force. The exact historical development is uncertain.
The left side 京 looks like a tall, imposing structure, and the right side 力 is strength. Imagine a towering fortress radiating fierce, strong power.
For ケイ, picture a strong, fierce warrior named Kay: Kay -> ケイ, and her strength is as formidable as the character 勍.