A suffix or combining form meaning writing, recording, or description of something.
From Greek 'graphia' derived from 'graphein' (to write). This productive suffix has been used since ancient times and became especially common in scientific terminology from the 18th century onward.
You've actually used this suffix hundreds of times without noticing—biography, geography, photography—it's one of the most productive word-building tools in English, letting us literally describe 'the writing of' anything.
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