plump up


1 [pluhmp]
adjective, plumper, plumpest.
well filled out or rounded in form; somewhat fleshy or fat.
verb (used without object)
to become plump (often followed by up or out ).
verb (used with object)
to make plump (often followed by up or out ): to plump up the sofa pillows.

1475–85; earlier plompe dull, rude < Middle Dutch plomp blunt, not pointed; cognate with Middle Low German plump

plumply, adverb
plumpness, noun

1. portly, round. See stout. 2, 3. fatten.

1. thin. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
plump1 (plʌmp)
1.  well filled out or rounded; fleshy or chubby: a plump turkey
2.  bulging, as with contents; full: a plump wallet
3.  (of amounts of money) generous; ample: a plump cheque
vb (often foll by up or out)
4.  to make or become plump: to plump up a pillow
[C15 (meaning: dull, rude), C16 (in current senses): perhaps from Middle Dutch plomp dull, blunt]

plump2 (plʌmp)
vb (often foll by down, into, etc) (foll by for)
1.  to drop or fall suddenly and heavily: to plump down on the sofa
2.  to give support (to) or make a choice (of) one out of a group or number
3.  a heavy abrupt fall or the sound of this
4.  suddenly or heavily: he ran plump into the old lady
5.  straight down; directly: the helicopter landed plump in the middle of the field
adj, —adv
6.  in a blunt, direct, or decisive manner
[C14: probably of imitative origin; compare Middle Low German plumpen, Middle Dutch plompen]

plump3 (plʌmp)
archaic, dialect or a group of people, animals, or things; troop; cluster
[C15: of uncertain origin]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

1481, "blunt, dull" (in manners), from Du. plomp "blunt, thick, massive, stumpy," probably related to plompen "fall or drop heavily" (see plump (v.)). Meaning "fleshy, of rounded form" is from 1545.

c.1300, "to fall or strike with a full impact," from M.Du. plompen, or M.L.G. plumpen, probably of imitative origin. Meaning "to plump (something) up, to cause to swell" is first recorded 1533, from the adj.
Online Etymology Dictionary, © 2010 Douglas Harper
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