手腕
shǒuwàn · HSK 7
wrist
✋ 手腕 = 手 (hand) + 腕 (forearm) — the joint where hand meets arm: the wrist
手 shǒu is hand; 腕 wàn is the forearm/wrist segment. Together they name the hinge between them. 手腕 also means knack or finesse — the skill in how you flex your wrist.
手 — pictograph of a hand with five fingers
手 is a pictograph showing an open hand with fingers and a wrist. Early bronze and oracle bone forms clearly depict five splayed fingers, which simplified over time into the modern shape. It keeps its original meaning of 'hand' and also serves as a radical in many characters related to hand actions.