from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To add on top of a previous addition.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To add over and above; to add to what has been added; to annex, as something extrinsic.
from The Century Dictionary and Cyclopedia
- To add over and above; join in addition.
super- + add (Wiktionary)