WordReference Random House Unabridged Dictionary of American English © 2025
su•per•add
(so̅o̅′pər ad′),USA pronunciation v.t.
su•per•ad•di•tion
(so̅o̅′pər ə dish′ən),USA pronunciation n.
su′per•ad•di′tion•al, adj.
- to add over and above; join as a further addition;
add besides.
- Latin superaddere, equivalent. to super- super- + addere to add
- late Middle English superadden 1425–75