I. ˈwestə(r) intransitive verb
Etymology: Middle English westren, from west (I) + -ren (as in clatren to clatter)
1. : to move westward
began his westering in 1678 — Bernard De Voto
— used especially of a celestial body in its course
a westering sun shone through the rose window — New York Times
2. : to turn, veer, or shift to the west
II. noun
( -s )
Etymology: west (II) + -er
1. : a strong west wind
the wester came as steady as the trades — John Masefield
2. : a storm with west winds