Against Aeglos the spear of Gil-galad none could stand;..
Aeglos - 'Snow-point', the spear of Gil-galad. 364
los - 'snow' in Oiolosse (Quenya oio 'ever' and losse 'snow, snow-white'); Sindarin loss in Amon Uilos and Aeglos.
(Silm, OF THE RINGS OF POWER AND THE THIRD AGE)
Aeglos, "snowthom", is said to have been like furze (gorse), but larger, and with white flowers. Aeglos was also the name of the spear of Gil-galad.
(UT, Narn i Hín Húrin, Note#15)