Why is the ninth month called September?
fabulous monster, late 14c., from Old French chimere or directly from Medieval Latin chimera, from Latin Chimaera, from Greek khimaira, name of a mythical creature, slain by Bellerophon, with a lion's head, a goat's body, and a serpent's tail (supposedly personification of snow or winter); literally "year-old she-goat" (masc. khimaros), from kheima "winter season" (see hibernation). Figurative meaning "wild fantasy" first recorded 1580s in English (attested 13c. in French).
Beestis clepid chymeres, that han a part of ech beest, and suche ben not, no but oonly in opynyoun. [Wyclif, "Prologue"]
chimera chi·me·ra (kī-mēr'ə, kĭ-)
One who has received a transplant of genetically and immunologically different tissue.
Twins with two immunologically different types of red blood cells.
A monster in classical mythology who had the head of a lion, the body of a goat, and the tail of a dragon or serpent.
Note: Figuratively, a “chimera” is a creation of the imagination, especially a wild creation.