Noun
mythopoeia (plural mythopoeias)
Creation of any myth.
Inventing languages (called glossopoeia by Tolkien, from Greek γλώσσα glôssa, "language, tongue" and ποιώ, "to make" paralleling his idea of mythopoeia or myth-making) was a lifelong occupation for Tolkien, starting in his teens. Source: Internet
The yearbook contains scholarly articles and reviews, dealing with Inklings members in particular, but also with fantasy literature and mythopoeia in general. Source: Internet