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[root] /rut/

noun
1.
Elihu
[el-uh-hyoo] /ˈɛl əˌhyu/ (Show IPA), 1845–1937, U.S. lawyer and statesman: Nobel Peace Prize 1912.
2.
John Wellborn
[wel-bern] /ˈwɛl bərn/ (Show IPA), 1851–91, U.S. architect.
/ruːt/
noun
1.

2.
any plant part, such as a rhizome or tuber, that is similar to a root in structure, function, or appearance
3.

4.
(anatomy) the embedded portion of a tooth, nail, hair, etc
5.
origin or derivation, esp as a source of growth, vitality, or existence
6.
(pl) a person’s sense of belonging in a community, place, etc, esp the one in which he was born or brought up
7.
an ancestor or antecedent
8.
(Bible) a descendant
9.
the form of a word that remains after removal of all affixes; a morpheme with lexical meaning that is not further subdivisible into other morphemes with lexical meaning Compare stem1 (sense 9)
10.
(maths) a number or quantity that when multiplied by itself a certain number of times equals a given number or quantity: 3 is a cube root of 27
11.
(maths) Also called solution. a number that when substituted for the variable satisfies a given equation: 2 is a root of x³ – 2x – 4 = 0
12.
(music) (in harmony) the note forming the foundation of a chord
13.
(Austral & NZ, slang) sexual intercourse
14.
root and branch

related adjective radical
verb
15.
(intransitive) Also take root. to put forth or establish a root and begin to grow
16.
(intransitive) Also take root. to become established, embedded, or effective
17.
(transitive) to fix or embed with or as if with a root or roots
18.
(Austral & NZ, slang) to have sexual intercourse (with)
/ruːt/
verb (intransitive)
1.
(of a pig) to burrow in or dig up the earth in search of food, using the snout
2.
(informal) foll by about, around, in etc. to search vigorously but unsystematically
verb
1.
(informal) (intransitive) usually foll by for. to give support to (a contestant, team, etc), as by cheering
n.

“underground part of a plant,” late Old English rot, from a Scandinavian source akin to Old Norse rot “root,” figuratively “cause, origin,” from Proto-Germanic *wrot (cf. Old English wyrt “root, herb, plant,” Old High German wurz, German Wurz “a plant,” Gothic waurts “a root,” with characteristic Scandinavian loss of -w- before -r-), from PIE *wrad- (see radish (n.), and cf. wort). The usual Old English words for “root” were wyrttruma and wyrtwala.

Figurative use is from c.1200. Of teeth, hair, etc., from early 13c. Mathematical sense is from 1550s. Philological sense from 1520s. Slang meaning “penis” is recorded from 1846. In U.S. black use, “a spell effected by magical properties of roots,” 1935. To take root is from 1530s. Root beer, made from the extracts of various roots, first recorded 1841, American English; root doctor is from 1821. Root cap is from 1875.
v.

“dig with the snout,” 1530s, from Middle English wroten “dig with the snout,” from Old English wrotan “to root up,” from Proto-Germanic *wrot- (cf. Old Norse rota, Swedish rota “to dig out, root,” Middle Low German wroten, Middle Dutch wroeten, Old High German ruozian “to plow up”), from PIE root *wrod- “to root, gnaw.”

Associated with the verb sense of root (n.). Extended sense of “poke about, pry” first recorded 1831. Phrase root hog or die “work or fail” first attested 1834, American English (in works of Davey Crockett, who noted it as an “old saying”). Reduplicated form rootin’ tootin’ “noisy, rambunctious” is recorded from 1875.

“cheer, support,” 1889, American English, originally in a baseball context, probably from root (v.1) via intermediate sense of “study, work hard” (1856). Related: Rooted; rooting.

“fix or firmly attach by roots” (often figurative), early 13c., from root (n.); sense of “pull up by the root” (now usually uproot) also is from late 14c. Related: Rooted; rooting.

root (rōōt, rut)
n.

root
(rt, rt)

In biology, the part of a plant that grows downward and holds the plant in place, absorbs water and minerals from the soil, and often stores food. The main root of a plant is called the primary root; others are called secondary roots. The hard tip is called the root cap, which protects the growing cells behind it. Root hairs increase the root’s absorbing surface.

The part of a tooth below the gum. The root anchors the tooth to the jawbone.

noun

The penis

[1846+; fr something that is or can be planted]

noun

verb

To lead a busy life professionally and socially: Monk’s seesawing years, from 1935 to 1940, were spent racketing endlessly back and forth between Europe and New York, an itinerant pianist and boulevardier (1760+)

[fr early 1800s British underworld fr racket, ”noise, confusion,” etc]

noun

(also rot-see or rotasie or Rot-corps) The Reserve Officers Training Corps (1940s+ College students)