Ebbing
Part of speech: verb
Definition: To flow back or recede
Wane
Part of speech: noun
Definition: A gradual diminution in power, value, intensity etc.The lunar phase during which diminishes the sunlight-illuminated area of the moon's surface visible from Earth.The end of a period.A rounded corner caused by lack of wood, often showing bark.A child.A house or dwelling.
Part of speech: verb
Definition: To progressively lose its splendor, value, ardor, power, intensity etc.; to decline.Said of light that dims or diminishes in strength.Said of the Moon as its through the phases of its monthly cycle during which its visible surface is progressively decrease.Said of a time period that comes to an end.To decrease physically in size, amount, numbers or surface.To cause to decrease.