lisandumine
Lisandumine is an Estonian noun meaning the act or process of adding. In English, it is commonly translated as addition or addendum, depending on context. The term derives from the verb lisama (to add) and the noun-forming suffix -mine; related forms include lisand, meaning an additive, and lisandum, the element that is added.
In mathematics and arithmetic, lisandumine denotes the operation of addition—combining two numbers to obtain their sum.
In publishing, law, and formal documentation, lisandumine refers to an addendum or appendix appended to a document,
In a broader linguistic or rhetorical context, lisandumine may denote supplementary information added to discourse, such
See also: Estonian language, addition, addendum, lisand, lisama.