The word 'spiderweb' is a transparent compound of two ancient English elements. 'Spider' itself originates from the Old English word for the creature, intrinsically linked to the verb 'to spin,' highlighting its defining action. 'Web' descends from a common Germanic root meaning 'that which is woven,' sharing ancestry with the modern verb 'to weave.' The compound's logic is perfectly literal: it is the 'web of a spider.' Over time, this concrete term has also evolved into a potent metaphor for any complex, interconnected, and ensnaring system, drawing directly from the physical properties of the silken structure.

Structure: spider (spider) + web (woven structure) spider: From Old English spīþra, related to spinnan (to spin). It denotes the arachnid that spins silk. web: From Old English webb, meaning "woven fabric, something woven," from the Proto-Germanic root wabjam, related to the verb wefan (to weave). It denotes a structure of interconnected threads.