cheekbone
顴 refers specifically to the cheekbone, the bony prominence below the eye.
顴 is a phono-semantic compound: 頁 (head) suggests the meaning related to the head or face, while 雚 likely provides the sound. The exact historical development of the phonetic component is uncertain.
The left side 雚 looks like a bird with a crest, and the right side 頁 means head or page. Imagine a bird's prominent cheekbone under its eye, like the bony ridge on a crested bird's face.
For ケン, picture a Ken doll with exaggerated cheekbones: Ken -> ケン, and his cheekbones are so sharp they could cut glass.
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cheekbone; zygomatic bone; malar bone