end gradually

The end, gradually, of combustion engines.

Whereas a third possibility is that a deep fertility decline is more likely to end gradually, through a kind of slow selection process rather than abrupt conversion.

Jeff Sessions, who until Wednesday was President Trump’s attorney general, announced in September that the Deferred Action for Childhood Arrivals program would end gradually over six months, prompting legal challenges and protests.

Shelves on the wall were bright with rolls of yarn and thread arranged by color, white and palest yellow at one end, gradually deepening into blues and purples and then browns and grays at the other.

He senses his life is coming to an end, gradually whittled back to nothing.