One of several definitions of this word, per Dictionary.com, is "a fine, filmy cobweb seen on grass or bushes or floating in the air in calm weather, especially in autumn." It's thought to have come from the Middle English term gosesummer, "possibly first used as name for late, mild autumn, a time when goose was a favorite dish." But it can also be used to refer to anything thin and airy, from a summer shawl to the wings of a butterfly. source https://bestlifeonline.com/wp-content/uploads/sites/3/2020/08/Gossamer-in-field.jpg?resize=500,333&quality=82&strip=all