In linguistics, the addition of a suffix or affix to a word or root word, especially when building compound or derived forms.
From Greek 'epi-' (upon) + 'syntheton' (put together), describing how language builders attach new elements to existing word stems.
This is how languages grow—we take a root and keep adding pieces: 'teach,' 'teacher,' 'teachable,' 'uneducable'—it's like linguistic building blocks stacking up!
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