About
The character "桕" is a phono-semantic compound formed from the semantic component "木", meaning tree, and the phonetic component "臼", historically indicating its pronunciation. Etymologically, it has always denoted the tallow tree, Sapium sebiferum, a plant valued for its waxy seeds used in traditional candle and soap making. Its structure reflects this botanical association through the "木" radical, while the "臼" element primarily served a phonetic role in earlier stages of the language. The meaning of "桕" has remained specific to this tree throughout its documented history, without broadening or shifting to other referents.