wane(noun)
1: a gradual decline (in size or strength or power or number)
[syn: ebb, ebbing]
wane
(verb)
1: grow smaller; "Interest in the project waned" [syn: decline,
go down]
2: become smaller; "Interest in his novels waned" [ant: wax]
3: decrease in phase; "the moon is waning" [ant: wax]