augment (verb) - to make larger, greater, or stronger; to build on what already exists [awg-ment]
BREAKDOWN: AUG- (to increase) + -MENT (act or state)
augmentation is the process or product of making something greater through addition
augmentative means of or pertaining to increase
an augmentative is a morphological form of a word which expresses greater intensity, e.g. megastore, archrival
See also: augur
“Obscurity is dispelled by augmenting the light of discernment, not by attacking the darkness.” —Socrates