# A Preliminary Study of the Causes Behind the Formation of Variant Dongba Characters
This article investigates the causes behind the formation of variant graphs (yiti zi) in Dongba script, the pictographic writing system of the Naxi people. The author argues that, like variant characters in Chinese script and other logographic or morpho-syllabic writing systems, Dongba variants arise from multiple factors, broadly grouped into internal (script-inherent) and external causes. Internally, Dongba script's writing system—which relies heavily on semantic and semantic-phonetic (rather than purely phonetic) word-recording methods—allows greater flexibility in graph design, unlike phonetic scripts with limited, fixed letter sets. Comparative statistics show Dongba script's morpheme inventory (806 graphemes) exceeds that of oracle-bone Chinese (about 348), and Chinese's larger inventory relative to alphabets already fosters extensive variants (e.g., 徧/徧, 韻/韻, 迹/蹟). This structural richness in signific/phonetic choices is identified as a fundamental root of variant proliferation in Dongba writing.
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