means A spiderweb is the delicate, often radial structure of silk threads a spider spins to trap prey, sense vibrations, or shelter itself.

from A plain compound of "spider" + "web," both old Germanic words. "Spider" comes from Old English "spithra," tied to the verb "spinnan" — to spin — so the creature is literally "the spinner." "Web" descends from Old English "webb," meaning a woven fabric, from the same root that gives us "weave." Put together, the word names exactly what it is: the woven thing made by the spinner.