Dictionary: mythopoeic   (mĭth'ə-pē'ĭk) also mythopoetic (-pō-ĕt'ĭk)

1. Of or relating to the making of myths.
2. Serving to create or engender myths; productive in mythmaking.

[From Greek mūthopoios, composer of fiction, from mūthopoiein, to relate a story : mūthos, story + poiein, to make.]

mythopoeia [mith‐oh‐pee‐ă] or mythopoesis [mith‐ŏ‐poh‐ees‐is], the making of myths, either collectively in the folklore and religion of a given (usually pre‐literate) culture, or individually by a writer who elaborates a personal system of spiritual principles as in the writings of William Blake. The term is often used in a loose sense to describe any kind of writing that either draws upon older myths or resembles myths in subject‐matter or imaginative scope.

Adjective: mythopoeic or mythopoetic.