vt to cause to decrease.
2. wane ·noun an inequality in a board.
3. wane ·noun decline; failure; diminution; decrease; declension.
4. wane ·noun the decrease of the illuminated part of the moon to the eye of a spectator.
5. wane ·add. ·noun the natural curvature of a log or of the edge of a board sawed from a log.
6. wane ·vi to decline; to fail; to sink.
7. wane ·vi to be diminished; to decrease;
contrasted with wax, and especially applied to the illuminated part of the moon.