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additament

[uh-dit-uh-muh nt]
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noun
  1. something added; an addition.

Origin of additament

1400–50; late Middle English < Latin additāmentum, equivalent to addit(us) (past participle) added (see addition) + -ā- (by analogy with verbal derivatives such as ornāmentum ornament) + -mentum -ment
Related formsad·dit·a·men·ta·ry [uh-dit-uh-men-tuh-ree] /əˌdɪt əˈmɛn tə ri/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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