mythographer

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my·thog·ra·pher

M0514800 (mĭ-thŏg′rə-fər)n. One who records, narrates, or comments on myths.
[From Greek mūthographos, writer of legends : mūthos, word, story + -graphos, -grapher.]

mythographer

(mɪˈθɒɡrəfə) n1. (Literary & Literary Critical Terms) a compiler or collector of myths2. (Literary & Literary Critical Terms) a creator of myths