Definition of "forever"

Secondly, When a body is once in motion it will continue to move forever, unless something stops it. When a ball is struck on the surface of the earth, the friction of the earth and the resistance of the air soon stop its motion.

1839, Denison Olmsted, A Compendium of Astronomy, page 95

If you want a picture of the future, imagine a boot stamping on a human face &emdash; for ever.

1949, George Orwell, Nineteen Eighty-Four

She and Serena had been friends forever. Or nearly forever: forty-two years, beginning with Miss Kimmel's first grade.

1988, Anne Tyler, chapter 1, in Breathing Lessons

Early in his boyhood he had learned to form ropes by twisting and tying long grasses together, and with these he was forever tripping Tublat or attempting to hang him from some overhanging branch.

1912 October, Edgar Rice Burroughs, “Tarzan of the Apes”, in The All-Story, New York, N.Y.: Frank A. Munsey Co.; republished as chapter 5, in Tarzan of the Apes, New York, N.Y.: A. L. Burt Company, 1914 June,

It's been a fortnight of forevers since the Braves could count on a late-game comeback.

2001 September, Michael Knisley, “The Braves' last stand”, in Sporting News, volume 225, number 36, page 12

In the airport, holiday lovers kiss, mouth forevers, the usual argot betrays you. Desire makes love dull.

2007, Ruth O'Callaghan, Where acid has etched

It'd be a peaceful life / With a forever wife / And a kid someday

1971, Bruce Johnston, "Disney Girls (1957)"

We'll take care of you and help you find a Forever Home.

2009, Kathy Kadilak, Tommy Finds His Forever Home, page 3

He is a forever friend.

2012, Brad Hicks, For Every Fear a Promise, page 96

Danner posits that the United States has been trapped in a "forever war" by 9/11, and describes a nation that has been altered in fundamental ways by President Bush's having declared a war of choice and without an exit plan, […]

2016, Mark Danner, Spiral: Trapped in the Forever War