beleti

1. to turn white; to go grey
   Kosa mu polako beli. — His hair is slowly going grey.
   Planine već bele od prvog snega. — The mountains are already turning white with the first snow.
2. (beleti se) to show white; to gleam white
   U daljini se beli mala crkva. — A small church shows white in the distance.

Do not confuse with beliti, "to whiten, bleach" something.