Verb

(lb) To collapse heavily or helplessly.

*

*:“Heavens!” exclaimed Nina, “the blue-stocking and the fogy!—and yours are'' pale blue, Eileen!—you’re about as self-conscious as Drina—slumping there with your hair tumbling ''à la Mérode! Oh, it's very picturesque, of course, but a straight spine and good grooming is better.”

(lb) To decline or fall off in activity or performance.

* {{quote-news, year=2011, date=October 29, author=Phil McNulty, work=BBC Sport

, title= Chelsea 3-5 Arsenal , passage=The Gunners captain demonstrated his importance to the team by taking his tally to an outstanding 28 goals in 27 Premier League games as Chelsea slumped again after their shock defeat at QPR last week.}}

(lb) To slouch or droop.

(lb) To lump; to throw together messily.

* (1788-1856)

These different groupsare exclusively slumped together under that sense.

To fall or sink suddenly through or in, when walking on a surface, as on thawing snow or ice, a bog, etc.

* (Isaac Barrow) (1630-1677)

The latter walk on a bottomless quag, into which unawares they may slump .

Verb

(en verb)

To move in a quick fashion.

To make someone speed up or make something happen quicker.

* Bible, Psalms lv. 8

I would hasten my escape from the windy storm.

* 2008 , Bradley Simpson, Economists with Guns , page 7:

[...] and prescribed policies and packages of military, economic and technical assistance to hasten their inevitable march toward development and modernity.

To cause some scheduled event to happen earlier.