About
The character 疸 is structured as a phono-semantic compound, combining the semantic radical 疒, which denotes illness, with the phonetic component 旦. Historically, this character described ailments involving yellow discoloration, with its earliest recorded uses pointing to conditions like jaundice. Over centuries, its meaning condensed from a broader category of febrile or hepatic diseases to specifically signify jaundice, as evidenced in the compound 黄疸. The character's form has remained consistent, with no distinct traditional variant separate from its standard presentation.
Etymology Hide
