Increment

The act or process of increasing; growth in bulk, guantity, number, value, or amount; augmentation; enlargement.

Matter added; increase; produce; production; -- opposed to decrement.

The increase of a variable quantity or fraction from its present value to its next ascending value; the finite quantity, generally variable, by which a variable quantity is increased.

An amplification without strict climax,

a process of becoming larger or longer or more numerous or more important; "the increase in unemployment"; "the growth of population"