mythmaker means A person who originates a myth. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Why “mythmaker” is a great word
MYTHMAKER — [Noun] A person who composes or originates myths. From myth (from Greek mûtos, "story, legend") + maker (one who makes). First recorded in English 1870–75. Unlike a mythologist, who dissects and catalogues existing traditions, or a storyteller, who may narrate any fiction, a mythmaker is the generative architect of a culture's bedrock. It is the silhouette by a dying fire giving names to the constellations, the hand etching origin tales onto temple walls, the voice that whispers a god into being from the rumble of thunder—the solemn work of willing a cosmology from the raw material of human wonder.
Etymology
From myth + maker.
noun
- A person who originates a myth.