The word 商量 is formed by combining two characters, each contributing a key aspect of the concept. The first character, 商, carries the core idea of discussion, deliberation, or consulting. The second character, 量, adds the notion of measuring, considering, or weighing something. When fused, they create a compound where the action of "discussing" (商) inherently involves the process of "weighing" options, opinions, or plans (量), perfectly capturing the essence of a collaborative exchange aimed at reaching a mutual decision or consensus.