About
The character 垓 is structured as a phono-semantic compound, with the earth radical 土 providing semantic association to land and the component 亥 serving as a phonetic indicator. In early usage, this character specifically denoted a boundary or frontier, reflecting its connection to territorial limits. Its meaning later broadened to encompass the concept of an extensive area, and it was subsequently adopted in classical Chinese mathematics to represent the large numeral ten to the eighth power, equivalent to one hundred million. While the character's application in modern language is largely historical, its form and compositional elements have persisted without substantial alteration.
Etymology Hide
