Top fused unit — simplified from traditional
緊's upper element
臤 (hand
又 grasping under watching eye
臣). The PRC reform absorbed the elaborate
臣 into the hand-shape; what remains is a
又-silhouette expanded to 4 strokes (standalone
又 has just 2 strokes —
丿+㇏). The kinetic image of a hand pulling something taut is preserved — gripping firmly to set up the cord-tightening below.