1) Enhancive 2) Increasing 3) Intensifying 1) French word used in English 2) Increasing 3) Serving to augment 4) Tending to make bigger 
An augmentative (abbreviated {sc|aug}) is a morphological form of a word which expresses greater intensity, often in size but also in other attributes. It is the opposite of a diminutive. Since overaugmenting something often makes it grotesque, in some languages augmentatives are used primarily for comical effect or as pejoratives. Many languages ...
• (a.) Having the quality or power of augmenting; expressing augmentation. • (n.) 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.
Aug·ment'a·tive adjective [ Confer French augmentatif .] Having the quality or power of augmenting; expressing augmentation. -- 
[adj] - intensifying by augmentation and enhancement
enhancive adjective intensifying by augmentation and enhancement
serving to augment. · pertaining to or productive of a form denoting increased size or intensity. In Spanish the augmentative suffix -ón is added to a word (as silla “chair”) to indicate increased size, as in sillón “armchair.”