augmentation vs buildup

augmentation

noun
  • The act or process of augmenting. 

  • A surgical procedure to enlarge a body part, as breast augmentation. 

  • A particular mark of honour, granted by the sovereign in consideration of some noble action, or by favour; and either quartered with the family arms, or on an escutcheon or canton. 

  • The stage of a disease during which symptoms increase or continue. 

  • A compositional technique where the composer lengthens the melody by lengthening its note values. 

  • An increase of stipend obtained by a parish minister by an action raised in the Court of Teinds against the titular and heritors. 

buildup

noun
  • An accumulation; an increase; a gradual development. 

  • The construction of a composite core to repair a damaged tooth. 

How often have the words augmentation and buildup occurred in a corpus of books? (source: Google Ngram Viewer )