increasing or having the power to increase especially in size or amount or degree
<adj.all> `up' is an augmentative word in `hurry up'
intensifying by augmentation and enhancement
<adj.all>
Augmentative \Aug*ment"a*tive\, a. [Cf. F. augmentatif.] Having the quality or power of augmenting; expressing augmentation. -- {Aug*ment"a*tive*ly}, adv.
Augmentative \Aug*ment"a*tive\, n. (Gram.) A word which expresses with augmented force the idea or the properties of the term from which it is derived; as, dullard, one very dull. Opposed to {diminutive}. --Gibbs.