Definition of augmentative in English:

augmentative

Syllabification: aug·ment·a·tive
Pronunciation: /ôgˈmentətiv
 
/

adjective

Grammar
(Of an affix or derived word) reinforcing the idea of the original word, especially by meaning ‘a large —,’ as with the Italian suffix -one in borrone ‘ravine,’ compared with borro ‘ditch.’.

Origin

late Middle English (in the sense 'having a tendency to increase'): from Old French augmentatif, -ive or medieval Latin augmentativus, from the verb augmentare (see augment).

Definition of augmentative in:

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Word of the day envenom
Pronunciation: ɪnˈvɛnəm
verb
put poison on or into; make poisonous