active, clever, prompt witty, smart, earnest, diligent, to hasten
勄 centers on energetic, quick-minded action: being active, clever, prompt, and diligent. The meanings of earnestness and hastening naturally extend from this core of lively, smart effort.
勄 is a rare variant of 敏, combining 每 (which likely contributes the sound) with 力 (strength/effort) to express active, diligent effort. The exact historical development is uncertain, but it is treated as an alternate form of 敏.
The left side 每 suggests repetition or every time, and the right side 力 is strength. Picture someone who puts strength into every task, always active and cleverly diligent.
For ビン, imagine a clever person quickly pinning a note to a board: pin -> ビン, and their swift, smart action shows the active, prompt nature of 勄.