ᴱ√FUMU root. “sleep”
A root from the Qenya Lexicon of the 1910s glossed “sleep” with Quenya derivatives beginning with f- such as ᴱQ. fum- “sleep” (QL/38). This root was first given as (deleted) ᴱ√HUMU, as reflected in words appearing in the contemporaneous Gnomish Lexicon such as G. hum- “sleep, drowze” (GL/49). In the Early Qenya Grammar of the 1920s, Tolkien gave the (unglossed) Qenya verb hum-, which might be a reversion to ᴱ√HUMU. However, in later writings Tolkien generally attributed the meaning “sleep” to the root √LOR and its variants, so ᴱ√HUMU/ᴱ√FUMU was probably abandoned.
References ✧ LT1A/fumellar; QL/39