A person who writes a glossary, or someone who studies and describes tongue-related phenomena scientifically.
From Greek 'glossa' (tongue/language) + '-grapher' (one who writes). Originally meant someone who writes explanatory notes on difficult texts, later applied to tongue researchers.
The word 'glossographer' reveals how 'glossa' meant both 'tongue' and 'language'—because the ancient Greeks recognized that understanding language meant understanding how the tongue physically works.
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