frame, norm

格 is composed of 木 (wood) and 各 (each). Since 各 signifies separate, individual entities, extending to the idea of division or partition, and frames used to divide items are often made of wood, the original meaning of 格 refers to a wooden frame, lattice, or shelf divider. When acting or carrying out affairs, maintaining an independent course unaffected by external influences eventually gives rise to distinct, self-contained standards and patterns. Thus, 格 also extends to denote rules, standards, patterns, or character.