I know that one can restore a shrunken object to normal size. This is not what I'm asking about. Why is there is no spell to allow one to Enlarge an object beyond it's original size? Am I just missing it in the books? Surely the game designers couldn't have overlooked this idea, especially considering such a spell did exist in 2nd Edition AD&D.
I could simply houserule in a reversed wording of the Shrink Item spell, but I wanted to know if I had somehow missed an existing spell or if there actually was a valid intentional reason for omitting this spell concept.