v. Obs. [OE. aþéostrian, f. A- pref. 1 + þéostrian: see THESTER v.] To grow dim, darken, become obscure.
c. 885. K. Ælfred, Boeth., ix. Þonne aðéostriaþ ealle steorran.
c. 1175. Cott. Hom., 239. Si sunne and se mone aþestreð for godes brictnesse.
c. 1205. Lay., 2860. Enne blase of fure, Þe neuer ne aþeostrede.
