Grammar. the process of inflection or derivation that consists of adding an affix.

1850–55; affix + -ation Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
1.  to attach, fasten, join, or stick: to affix a poster to the wall
2.  to add or append: to affix a signature to a document
3.  to attach or attribute (guilt, blame, etc)
4.  prefix suffix See also infix a linguistic element added to a word or root to produce a derived or inflected form: -ment in establishment is a derivational affix; -s in drowns is an inflectional affix
5.  something fastened or attached; appendage
[C15: from Medieval Latin affixāre, from ad- to + fixāre to fix]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica


a grammatical element that is combined with a word, stem, or phrase to produce derived and inflected forms. There are three types of affixes: prefixes, infixes, and suffixes. A prefix occurs at the beginning of a word or stem (sub-mit, pre-determine, un-willing); a suffix at the end (wonder-ful, depend-ent, act-ion); and an infix occurs in the middle. English has no infixes, but they are found in American Indian languages, Greek, Tagalog, and elsewhere. Examples of English inflectional suffixes are illustrated by the -s of "cats," the -er of "longer," and the -ed of "asked." See also morphology

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
In some factual settings ground lease provisions and re-imaging histories may provide additional indications of affixation length.
The affixation of a notice is not a condition of protection under the law, but provides certain benefits.
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