Ezellohar, also called Corollairë, was the Green Mound before the western gates of Valmar, the city of the Valar. It was the place where the Two Trees of Valinor grew.
Ezehollar (pron. [eˈzelːoxar]) is Vanyarin for "Green Mound"; containing the element ezello ("green").
Corollairë (pron. [ˌkorolˈlaɪre]) is a Quenya name, literally meaning "summer mound".