Other forms: cobwebs
A cobweb is the fine net a spider spins. Sweep away the cobwebs, cobwebs in the corner, blow away the cobwebs.
Strictly a cobweb is an abandoned and dusty web rather than one in use, though nobody keeps the distinction. Blow away the cobwebs means to clear your head with fresh air. The cob in it is an Old English word for a spider.
1nouncobwebThe fine net a spider spins.
“The old shed was dark and dusty, with cobwebs hanging from every beam.”
cobweb is a web.
Old English atorcoppe means a spider, from which the cob in cobweb survives, plus web.
Old English
ātorcoppe — spider
Middle English
copweb
English, today
cobweb
From Middle English copweb, coppeweb, coppewebbe, from Old English ātorcoppe (“spider”) + Old English webb. Compare Middle Dutch kopwebbe, German Low German Kobbenwebbe Westphalian. by surface analysis, en + cob + web.
Etymology from Wiktionary, CC BY-SA