[f. WESTERN a.] intr. Of the sun: To decline in the west. (Cf. WESTER v. 1.) Hence Westerning ppl. a.
1851. Pugin, Chancel Screens, 83. The warm tints of a westerning sun.
1904. Daily Chron., 28 Oct., 5/4. The sun was rapidly westerning.
