noun.magical alloy that glows in moonlight, (lit.) moon-star
The magic alloy from which the Moria-gate runes were made, a combination of S. Ithil “moon” and S. tîn “star” and hence “moon-star” (LotR/317; PE17/39, 66). In one place Tolkien considered the form ithildim (PE17/39). The term first appeared in Lord of the Rings drafts of the 1940s (TI/180).
The magic alloy from which the Moria-gate runes were made, a combination of S. Ithil “moon” and S. tîn “star” and hence “moon-star” (LotR/317; PE17/39, 66). In one place Tolkien considered the form ithildim (PE17/39). The term first appeared in Lord of the Rings drafts of the 1940s (TI/180).