Origin: Germanic Old English prefix
Oversize has 4 different meanings across 1 category:
The increased size of the bore of an engine when it is rebored.
"The mechanic decided to have the cylinder oversize by .010 inch so we could install the new forged pistons without having to machine a completely fresh block."
To exceed in size.
"The new sofa is so oversize that it barely fits through our front door."
Larger than normal
"The shipping container was oversize, so we had to schedule a special delivery truck for it."