augmentation

 
Pronunciation: /ɔːgmɛnˈteɪʃ(ə)n/

noun

[mass noun]
  • the action or process of making or becoming greater in size or amount: the augmentation of the curriculum with new subjects
  • Music the lengthening of the time values of notes in a melodic part.
  • [count noun] Heraldry an addition to a coat of arms granted as a mark of special honour.

Origin:

late Middle English: from late Latin augmentatio(n-), from the verb augmentare (see augment)