The Quenya equivalent of Mormegil (MR/216). It is a combination of the element √MOR “black” and macil “sword”.
Conceptual Development: The name ᴱQ. Mormakil dates back to the earliest Lost Tales where it had the same meaning (LT2/84). ᴹQ. Mormakil appeared in Silmarillion drafts from the 1930s (SM/29, 304) and The Etymologies, which is the source of the derivation as given above (Ety/MAK). The Quenya form was not used in the published version of The Silmarillion, however.
Mormacil ("k")noun "Black-sword" (name of Túrin, Sindarin Mormegil) (MAK)