A fine, filmy substance consisting of cobwebs spun by small spiders, seen especially in autumn. Or, a light, thin, and insubstantial or delicate material or substance.
apparently from goose + summer, perhaps from the time of year around St Martin’s summer, i.e. early November, when geese were eaten
“Flying on gossamer wings”
“I found myself caught up, gossamer wrapped around my clothes.”
Chimaera (noun) (also Chimera)
(in Greek mythology) a fire-breathing female monster with a lion’s head, a goat’s body, and a serpent’s tail. (modern biology) An organism containing a mixture of genetically different tissues, formed by processes such as fusion of early embryos, grafting, or mutation.
Late Middle English: via Latin from Greek khimaira ‘she-goat or chimaera’.