'Grey-cloak', 'Grey-mantle' (in Quenya Sindacollo, Singollo), the name by which Elwë, leader with his brother Olwë of the host of the Teleri from Cuiviénen and afterwards King of Doriath, was known in Beleriand; also called the Hidden King. See Elwë. 58, 103-10, 125, 130-1, 134, 145, 151-5, 157, 172, 176-7, 182, 190, 199-204, 208-9, 217, 222-7, 229-30, 243-7, 260, 267,269,280, 285-92, 297, 315