The word 经常 is formed by combining two independent characters, each contributing a core idea of regularity and constancy. 经 (jīng) originally referred to the longitudinal, unchanging warp threads in a loom, evoking a sense of enduring principle or constant path. 常 (cháng) carries the meaning of permanence, commonness, or that which is unchanging and ordinary. When fused, their conceptual ideas merge metaphorically, with 经 providing the framework of continuity and 常 reinforcing the notion of everyday normality, together creating the abstract concept of something that happens frequently or regularly as part of a sustained pattern.