affix, a grammatical element that is combined with a word, stem, or phrase to produce derived or inflected forms. There are three main types of affixes: prefixes, infixes, and suffixes.
Another article states that:
In linguistics, an affix is a morpheme that is attached to a word stem to form a new word or word form.
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Answer:
Affix
Explanation:
I did my mini-research
1st article states that:
affix, a grammatical element that is combined with a word, stem, or phrase to produce derived or inflected forms. There are three main types of affixes: prefixes, infixes, and suffixes.
Another article states that:
In linguistics, an affix is a morpheme that is attached to a word stem to form a new word or word form.