coron (1) noun "mound" (SA); Coron Oiolairë ("Koron"), place-name: the "Mound of Eversummer" where the Two Trees grew. Also contracted Corollairë (WJ:401) and Corlairë (MR:107); both are spelt with an initial k in the sources.
Quenya
coron
noun. mound, mound; [ᴹQ.] globe, ball
coron
mound
coron
globe, ball
coron (2) ("k") (corn-, as in dat. sg. cornen) noun "globe, ball" (KOR)
coron oiolairë
place name. Mound Ever-summer
A fuller name of Corollairë, a combination of coron “mound”, oi(o) “ever” and lairë “summer” (WJ/401).
cumbë
mound, heap
cumbë ("k")noun "mound, heap" (KUB)
A word glossed “mound” in the name Q. Koron Oiolaire “Mound Ever-summer” in the Quendi and Eldar essay from 1959-60 (SA/coron; WJ/401). In The Etymologies of the 1930s, however, ᴹQ. koron was glossed “globe, ball” and was derived from the root ᴹ√KOR “round” (Ety/KOR). If this was its primary meaning, then perhaps it could also refer to round hills as hemispheres. In The Etymologies, its stem form was korn- as indicated by its (Middle Quenya) genitive kornen, likely the result of the Quenya syncope; the same reduction in inflected forms may have applied to the later version of the word as well.