fade

a golf shot that curves to the right for a right-handed golfer; "he took lessons to cure his slicing"

gradually ceasing to be visible

become less clearly visible or distinguishable; disappear gradually or seemingly; "The scene begins to fade"; "The tree trunks are melting into the forest at dusk"

lose freshness, vigor, or vitality; "Her bloom was fading"

disappear gradually; "The pain eventually passed off"

become feeble; "The prisoner has be languishing for years in the dungeon"