'gossamer' originates from Middle English, specifically the word 'gossomer', which was recorded in forms like 'gossomere' and referred to the fine webs seen in autumn.

'gossamer' changed from Middle English 'gossomer' (also spelled 'gossomere'), which likely combined Old English elements related to 'goose' and 'summer' or referred to a late-season period; over time the form settled into modern English as 'gossamer'.

Initially, it referred to the fine cobwebs seen in a particular season (and by folk etymology to 'goose-summer'); over time it broadened to mean any extremely light, delicate fabric or thing.