case for a bow
韊 refers to a case or container specifically for holding a bow, typically made of leather or similar material.
韊 combines 革 (leather) with 蘭, which likely contributes the sound. The character denotes a leather bow case, fitting the semantic contribution of 革.
The left side 革 (leather) suggests a leather item, and the right side 蘭 (orchid) can be imagined as an ornate decoration on a bow case. Picture a beautifully decorated leather case holding a bow.
For ラン, imagine a runner carrying a leather bow case: run -> ラン, and the runner's case holds the bow securely.