surge

[surj]
noun
1.
a strong, wavelike, forward movement, rush, or sweep: the onward surge of an angry mob.
2.
a strong, swelling, wavelike volume or body of something: a billowing surge of smoke.
3.
the rolling swell of the sea.
4.
the swelling and rolling sea: The surge crashed against the rocky coast.
5.
a swelling wave; billow.
6.
Meteorology.
a.
a widespread change in atmospheric pressure that is in addition to cyclonic and normal diurnal changes.
7.
Electricity.
a.
a sudden rush or burst of current or voltage.
b.
a violent oscillatory disturbance.
8.
Nautical. a slackening or slipping back, as of a rope or cable.
9.
Machinery.
a.
an uneven flow and strong momentum given to a fluid, as water in a tank, resulting in a rapid, temporary rise in pressure.
b.
pulsating unevenness of motion in an engine or gas turbine.
verb (used without object), surged, surging.
10.
(of a ship) to rise and fall, toss about, or move along on the waves: to surge at anchor.
11.
to rise, roll, move, or swell forward in or like waves: The sea surged against the shore. The crowd surged back and forth.
12.
to rise as if by a heaving or swelling force: Blood surged to his face.
13.
Electricity.
a.
to increase suddenly, as current or voltage.
b.
to oscillate violently.
14.
Nautical.
a.
to slack off or loosen a rope or cable around a capstan or windlass.
b.
to slip back, as a rope.
15.
Machinery. to move with pulsating unevenness, as something driven by an engine or gas turbine.
verb (used with object), surged, surging.
16.
to cause to surge or roll in or as in waves.
17.
Nautical. to slacken (a rope).

Origin:
1480–90; perhaps < Latin surgere to spring up, arise, stand up

unsurging, adjective

serge, surge.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
surge (sɜːdʒ)
 
n
1.  a strong rush or sweep; sudden increase: a surge of anger
2.  the rolling swell of the sea, esp after the passage of a large wave
3.  a heavy rolling motion or sound: the surge of the trumpets
4.  an undulating rolling surface, as of hills
5.  a billowing cloud or volume
6.  nautical a temporary release or slackening of a rope or cable
7.  a large momentary increase in the voltage or current in an electric circuit
8.  an upward instability or unevenness in the power output of an engine
9.  astronomy a short-lived disturbance, occurring during the eruption of a solar flare
 
vb
10.  (intr) (of waves, the sea, etc) to rise or roll with a heavy swelling motion
11.  (intr) to move like a heavy sea
12.  nautical to slacken or temporarily release (a rope or cable) from a capstan or (of a rope, etc) to be slackened or released and slip back
13.  (intr) (of an electric current or voltage) to undergo a large momentary increase
14.  rare (tr) to cause to move in or as if in a wave or waves
 
[C15: from Latin surgere to rise, from sub- up + regere to lead]
 
'surgeless
 
adj
 
'surger
 
n

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

surge
1490, "fountain, stream," probably from M.Fr. sourge-, stem of sourdre "to rise, swell," from L. surgere "to rise," contraction of surrigere "to rise," from sub "up from below" + regere "to keep straight, guide" (see right). Meaning "high, rolling swell of water" is from 1530;
figurative sense of "excited rising up" (as of feelings) is from 1520. The verb is first recorded 1511.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
surge   (sûrj)  Pronunciation Key 
A coastal rise in water level caused by wind.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The price of teff, a staple, has surged after a famine that is still pushing
  people to the city.
On the bull's burial day, city residents surged into the streets to observe
  this occasion of national mourning.
The renewable industry has surged when voters get angry.
Investors have surged off-piste in search of higher returns.
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