About
桠 is a phono-semantic compound, with the semantic radical 木 establishing its connection to trees and plant structure. The component 亚 serves as the phonetic marker. The character specifically denotes the fork of a tree or a branching point where a limb divides into smaller branches. Its meaning is highly specific to botanical structures, commonly used to describe the bifurcations in woody plants. The traditional form 椏 uses the phonetic component 亞, whose cross-like shape is incidental to its primary phonetic function. Together, the tree radical and this sound categorize a specific part of a tree's anatomy.