English Dictionary

To grow less, -- opposed to increase; to be diminished gradually, in size, degree, number, duration, etc., or in strength, quality, or excellence; as, they days decrease in length from June to December.
Source : opted (39653)  - auto

To cause to grow less; to diminish gradually; as, extravagance decreases one's means.
Source : opted (39654)  - auto

A becoming less; gradual diminution; decay; as, a decrease of revenue or of strength.
Source : opted (39655)  - auto

The wane of the moon.
Source : opted (39656)  - auto