The word 出错 is formed through a direct conceptual combination of its two component characters. The first character, 出 (chū), carries the core meaning of "to exit" or "to emerge". The second, 错 (cuò), means "mistake" or "error". Their combination creates a vivid, almost pictorial meaning: an error emerges or comes out into the open. It describes the moment or process of a mistake manifesting itself, effectively visualizing the action of "going wrong" as an error exiting a state of hidden potential and becoming an actual, observable fault.