pottery
匋 centers on pottery: the craft of shaping clay into vessels and the resulting ceramic ware.
匋 is an older form of 陶, combining 勹 (wrapping) and 缶 (earthenware jar) to suggest the shaping of clay into pottery.
The outer 勹 wraps around an inner 缶, like clay being shaped around a jar form. 匋 is the art of pottery.
For トウ, imagine a potter throwing clay on a wheel: the soft 'toh' sound of the spinning clay cues トウ, and the wrapped shape becomes pottery.