The antonyms for deduct is to add, to increase, to raise.
ascend and descend
Fall-Rise Descend- Ascend
Descend.
Width
Width
Depth
Width
Depth. To ascend is to go up, and to descend is go down. We measure the height of things above the ground and the depth of things below the ground.
The opposite is descend (go down the stairs).
lift.... Gravity
She would descend down the stairs at midnight.
The Latin root "scandere" means "to climb" or "to ascend." It is commonly found in words related to climbing or rising, such as "ascend" or "descend."