This root was given as ᴱ√MASA¹ “dusk” in its main entry in the Qenya Lexicon of the 1910s, but its Gnomish form math- indicates the true root was ᴱ√MAÞA (QL/59). This was clarified in a list of roots at the end of the M-section in the Qenya Lexicon (QL/63) and its representation as maþ- in the contemporaneous Gnomish Lexicon (GL/59). Its most notable use in the legendarium was in the name G. Umboth-muilin “Pools (muil-plural) of Twilight (umboth)”, where G. umboth or umbath “nightfall” was derived from a strengthened form of the root, ᴱ√mbaþ- (GL/75). However, in later writings this name was reconceived as Ilk. Umboth Muilin “Veiled (muilin) Pool (umboth)”, with the first element umboth meaning “large pool” (Ety/MBOTH, MUY). The name was ultimately replaced with S. Aelin-uial (S/114), by which point the early root ᴱ√MAÞA was long abandoned.
Early Primitive Elvish
-ō
suffix. -ō
fumu
root. sleep
maþa
root. dusk
kar-
verb. to make
tulu
root. fetch, bear, bring; move, come; (originally) uphold, support, bear, carry
tyulu
root. tall
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.