ornamental cap
俅 centers on an ornamental cap, a decorative headpiece. The meaning is narrow and specific, with no clear broader conceptual cluster.
俅 combines 亻 (person) with 求, which may have contributed a phonetic role. The exact historical development of the character is uncertain, and the connection between the components and the meaning 'ornamental cap' is not clearly established.
A person 亻 wearing a cap shaped like the right side 求, which resembles a head with a decorative top. Imagine someone proudly displaying an ornamental cap.
For キュウ, picture a person wearing an ornamental cap while holding a cue card: cue -> キュウ, and the cap makes them look important.