root

1 of 4

noun

ˈrüt  ˈru̇t 

plural roots

1

a

: the usually underground part of a seed plant body that originates usually from the hypocotyl, functions as an organ of absorption, aeration, and food storage or as a means of anchorage and support, and differs from a stem especially in lacking nodes, buds, and leaves

b

: any subterranean plant part (such as a true root or a bulb, tuber, rootstock, or other modified stem) especially when fleshy and edible

2

a

: the part of a tooth within the socket

also : any of the processes into which this part is often divided see tooth illustration

b

: the enlarged basal part of a hair within the skin

c

: the proximal end of a nerve

especially : the initial segment of a spinal nerve where it branches from the spinal cord : nerve root see also dorsal root, ventral root

d

: the part of an organ or physical structure by which it is attached to the body

the root of the tongue

3

a

: something that is an origin or source (as of a condition or quality)

… the love of money is the root of all evil …

—1 Timothy 6:10 (King James Version)

b

: one or more progenitors of a group of descendants

—usually used in plural

c

: an underlying support : basis

d

: the essential core : heart

—often used in the phrase at root

e

: close relationship with an environment : tie

—usually used in plural

They put down roots in a farming community.

4

a

: a quantity taken an indicated number of times as an equal factor

2 is a fourth root of 16.

b

: a number that reduces an equation to an identity when it is substituted for one variable

5

a

: the lower part : base

b

: the part by which an object is attached to something else

6

: the simple element inferred as the basis from which a word is derived by phonetic change or by extension (such as composition or the addition of an affix or inflectional ending)

7

: the lowest tone of a chord (such as C in a C minor chord) when the tones are arranged in ascending thirds

8

computers : a level of access to a computer system that allows complete access to files on the system and complete control over the system's functions

—usually used before another noun

root user

root directory

rooted

ˈrü-təd 

ˈru̇-

adjective

rootedness noun

rootless

ˈrüt-ləs 

ˈru̇t-

adjective

rootlessness noun

rootlike

ˈrüt-ˌlīk 

ˈru̇t-

adjective

see also take root

root

2 of 4

verb (1)

rooted; rooting; roots

transitive verb

1

a

: to furnish with or enable to develop roots

b

: to fix or implant by or as if by roots

2

: to remove altogether by or as if by pulling out by the roots

—usually used with out

root out dissenters

intransitive verb

1

: to grow roots or take root

2

: to have an origin or base

root

3 of 4

verb (2)

rooted; rooting; roots

intransitive verb

1

: to turn up or dig in the earth with the snout : grub

2

: to poke or dig about

transitive verb

: to turn over, dig up, or discover and bring to light

—usually used with out

root out the cause of the problem

root

4 of 4

verb (3)

ˈrüt 

also

ˈru̇t 

rooted; rooting; roots

intransitive verb

1

: to noisily applaud or encourage a contestant or team : cheer

2

: to wish the success of or lend support to someone or something

rooter noun

Synonyms

Noun

• cradle
• font
• fountain
• fountainhead
• origin
• seedbed
• source
• spring
• well
• wellspring

Verb (1)

• bed
• embed
• imbed
• enroot
• entrench
• intrench
• fix
• impact
• implant
• ingrain
• engrain
• lodge

Choose the Right Synonym for root

origin, source, inception, root mean the point at which something begins its course or existence.

origin applies to the things or persons from which something is ultimately derived and often to the causes operating before the thing itself comes into being.

an investigation into the origin of baseball

source applies more often to the point where something springs into being.

the source of the Nile

the source of recurrent trouble

inception stresses the beginning of something without implying causes.

the business has been a success since its inception

root suggests a first, ultimate, or fundamental source often not easily discerned.

the real root of the violence

Examples of root in a Sentence

Noun

Elm trees have shallow roots.

Pull weeds up by the roots so that they don't grow back.

You can tell that she dyes her hair blonde because her dark roots are showing.

Recent Examples on the Web

Noun

Baseball’s unique longevity and deep cultural roots meant that many of its minor league teams have their own celebrated histories and fanbases. —Matt Ford, The New Republic, 21 Sep. 2023

Independent jail monitor says staffing crisis at root of Danelo Cavalcante's escape Maxwell said the board's concerns a year ago prompted them to hire third-party consultants to evaluate conditions at the prison. —Jared Kofsky, ABC News, 20 Sep. 2023

In the 1970s, the Oak Ridge Boys followed The Statler Brothers in gaining country success as a four-part vocal group with gospel roots. —Jessica Nicholson, Billboard, 19 Sep. 2023

Lāhainā's Banyan tree represents the deep roots of this community. —Jennifer Hassan, Washington Post, 19 Sep. 2023

The other players with Alabama football roots repeating as modern-era nominees from last year are running back Shaun Alexander, linebacker Cornelius Bennett, defensive end Robert Mathis, linebacker Takeo Spikes and defensive end Justin Tuck. —Mark Inabinett | [e-mail], al, 19 Sep. 2023

The Republican party's biggest fight may be on the issue of Ukraine where Republican candidates led by former President Trump are turning away from the party's traditional national security roots and questioning the U.S.’s commitment to the war. —Nbc Universal, NBC News, 17 Sep. 2023

But Monken hasn’t drifted far from his roots, at least not Sunday. —Mike Preston, Baltimore Sun, 17 Sep. 2023

Examine the roots to look for signs of disease or rotting. —oregonlive, 17 Sep. 2023

Verb

And yet, executives at the network have spent weeks orchestrating a series of programming changes that aim to keep conservative viewers rooted even as smaller, far-right outlets try to woo away its audience. —Brian Steinberg, Variety, 21 Sep. 2023

If you’ve been confused about where to live and establish your home base, you’ll probably be sufficiently charmed by a location this month and happily root there a little longer. —Steph Koyfman, Condé Nast Traveler, 28 Aug. 2023

These conflicting interests cannot be traded away by diplomats sitting around a table because they are rooted not just in each country’s political system but also in their historical memories and geographies. —Michael Beckley, Foreign Affairs, 22 Aug. 2023

In Walter Isaacson’s biography of Musk, new details reveal just how far the family tree rooted itself during the infamous first days of the acquisition. —Kylie Robison, Fortune, 12 Sep. 2023

Though the festival casts a wide lens on world cinema, Fowlie remains rooted on the Midcoast. —Emma Glassman-Hughes, BostonGlobe.com, 12 Sep. 2023

His political ethos is rooted more in middle-class Scranton, Pa., than in the wealth that surrounds his son’s home in the hills of Malibu. —Katie Rogers, New York Times, 10 Sep. 2023

The Atlantic Coast Conference, a college sports alliance with a membership rooted solely in the Eastern Time Zone, will spread west next fall, adding the University of California, Stanford and Dallas' Southern Methodist University to its league, officials said Friday. —David K. Li, NBC News, 1 Sep. 2023

Police responding to reports of a man rooting around in boxes containing rat poison and going through residents’ mailboxes approached Ross, the Memphis police department said in a news release posted to their Facebook page on August 11. —Carma Hassan, CNN, 25 Aug. 2023

See More

Word History

Etymology

Noun

Middle English, from Old English rōt, from Old Norse; akin to Old English wyrt root, Latin radix, Greek rhiza

Verb (2)

alteration of wroot, from Middle English wroten, from Old English wrōtan; akin to Old High German ruozzan to root

Verb (3)

perhaps alteration of rout entry 5

First Known Use

Noun

before the 12th century, in the meaning defined at sense 1b

Verb (1)

14th century, in the meaning defined at intransitive sense

Verb (2)

1516, in the meaning defined at intransitive sense 1

Verb (3)

1889, in the meaning defined at sense 1

Phrases Containing root

• latent root
• brace root
• black cohosh root
• celery root
• rattlesnake root
• dorsal root ganglion
• dorsal root
• orris root
• prop root
• root and branch
• root cap
• root bound
• root crop
• root canal
• root for
• root cellar
• root kit
• root-mean-square
• root knot
• root hair
• root-knot nematode
• root vegetable
• secondary root
• take root
• ventral root
• square root
• tuberous root
• at the root of
• characteristic root
• primary root
• cube root
• root out
• root ball
• nerve root
• senega root
• root beer
• root pressure
• fibrous root
• root rot
• root (someone or something) on

See More

• latent root
• brace root
• black cohosh root
• celery root
• rattlesnake root
• dorsal root ganglion
• dorsal root
• orris root
• prop root
• root and branch
• root cap
• root bound
• root crop
• root canal
• root for
• root cellar
• root kit
• root-mean-square
• root knot
• root hair
• root-knot nematode
• root vegetable
• secondary root
• take root
• ventral root
• square root
• tuberous root
• at the root of
• characteristic root
• primary root
• cube root
• root out
• root ball
• nerve root
• senega root
• root beer
• root pressure
• fibrous root
• root rot
• root (someone or something) on

See More

Kids Definition

root

1 of 4 noun

ˈrüt  ˈru̇t 

1

a

: the leafless usually underground part of a plant that absorbs water and minerals, stores food, and holds the plant in place

b

: an underground plant part especially when fleshy and edible

2

a

: the part of a tooth within the socket

b

: the base or end of a bodily part (as a hair or a fingernail) or the part by which it is attached to the body

3

a

: an original cause : source

the roots of evil

b

: the ancestors of a person or a group of persons

people tracing their roots

c

: something that lies under and supports

the roots of a mountain chain

d

: core entry 1 sense 1, heart

the root of the problem

e

: a close relationship with a social environment

has roots in the South

4

a

: a number that when multiplied by itself a given number of times equals a specified number

2 is a 4th root of 16 because 2 x 2 x 2 x 2 = 16

b

: a solution of a polynomial equation with one unknown

(x + 1) (x - 1) = 0 has the roots x = -1 and x = 1

5

: a word or part of a word from which other words are formed

"butler" and "bottle" come from the same Latin root

rooted

-əd 

adjective

rootless

-ləs 

adjective

rootlike

-ˌlīk 

adjective

root

2 of 4 verb

1

a

: to form or enable to form roots

b

: to fix or become fixed by or as if by roots : take root

2

: to remove by or as if by pulling out the roots

root out spies

root

3 of 4 verb

: to turn up or dig in the soil with the snout

pigs rooting for fungi

root

4 of 4 verb

ˈrüt  ˈru̇t 

1

: cheer entry 2 sense 2

2

: to wish for the success of someone or something

rooting for the underdog

rooter noun

Etymology

Noun

Old English rōt "root of a plant"; of Norse origin

Verb

perhaps an altered form of rout, a rare word meaning "to low or bellow like cattle"

Medical Definition

root

noun

ˈrüt  ˈru̇t 

1

a

: the usually underground part of a seed plant body that functions as an organ of absorption, aeration, and food storage or as a means of anchorage and support and that differs from a stem especially in lacking nodes, buds, and leaves

b

: any subterranean plant part (as a true root or a bulb, tuber, rootstock, or other modified stem) especially when fleshy and edible

2

a(1)

: the part of a tooth within the socket

(2)

: any of the processes into which the root of a tooth is often divided

b

: the enlarged basal part of a hair within the skin

called also hair root

c

: the proximal end of a nerve

especially : the initial segment of a spinal nerve where it branches from the spinal cord : nerve root see also dorsal root, ventral root

d

: the part of an organ or physical structure by which it is attached to the body

the root of the tongue

rootless

-ləs 

adjective

Legal Definition

root

noun

ˈrüt, ˈru̇t 

in the civil law of Louisiana : descendant

Biographical Definition

Root

biographical name

ˈrüt 

ˈru̇t

Elihu 1845–1937 American lawyer and statesman