# √

| √ | U+221A, &#8730; SQUARE ROOT |
| ← ∙ [U+2219] | Mathematical Operators | ∛ → [U+221B] |
| ⎷ | U+23B7, &#9143; RADICAL SYMBOL BOTTOM |
| ← ⎶ [U+23B6] | Miscellaneous Technical | ⎸ → [U+23B8] |

## Translingual
### Symbol

* square root of.
    √4̅ = ${\sqrt {4}}$ = 2
* (linguistics) Used before text to indicate it is a root.
** 1889, W.D. Whitney, Sanskrit Grammar (in English), Breitkopf and Hartel, →OCLC, page 222:The consonant of the reduplicating syllable is in general the first consonant of the root: thus, पप्रछ् paprach from √प्रछ् prach; शिश्रि çiçri from √श्रि çri; बुबुध् bubudh from √बुध्.
** 1901, “Cratis”, in Paulys Realencyclopädie der classischen Altertumswissenschaft (in German), page 1682:Cratis = Reisig, Geflecht, Gitter, Schicht ist mit griech. κάρταλος = Korb, got. haúrds. nhd. Hürde u. s. w. von indog. √kerto = knüpfen, flechten abzuleiten ( […] ), und hat sich auch mehrfach in den romanischen Sprachen erhalten, wie ital. grata = GitterCratis = brushwood, mesh, lattice, layer is along with Greek κάρταλος = basket, Gothic haúrds, New High German Hürde, etc. from Indo-European √kerto = to tie, braid ( […] ), and has also been preserved several times in the Romance languages, like Italian grata = lattice
** 1940, C. de Foucauld, Dictionnaire abrégé touareg-français de noms propres (in French), page 333:Té̆rîtek ⵜⵔⵜⴾ (√ ⵔⵜⴾ ertek « tomber verticalement ») ‖ F.Té̆rîtek ⵜⵔⵜⴾ (√ ⵔⵜⴾ ertek "fall vertically") ‖ F.
** 1946, Annali lateranensi pubblicazione del Pontificio museo missionario etnologico, volume 3 (in Italian), page 197:Ma questa particolare accezione di kawn non ha alcun nesso speciale con l'India, perchè è della lingua araba usare √ KWN ora per l'«essere» (come in كان اللّه) e ora per il «divenire», e il greco fa lo stesso con √ γεν e il sanscrito con √ bhū (bhava, mondo, كون; svabhâva, essenza, كيان).But this particular sense of kawn does not have anything special to do with India, because it is (characteristic) of Arabic to use √ KWN sometimes for "being" (as in كان اللّه) and sometimes for "becoming", and Greek does the same with √ γεν and Sanskrit with √ bhū (bhava, world, كون; svabhâva, essence, كيان).
** 2010, A. Yadin, G. Zuckermann, “ […] Ideological Secularization of Hebrew Terms […] ”, in T. Omoniyi, editor, The Sociology of Language and Religion (in English), Springer, →ISBN, page 87:Consider Israeli מיקום mikúm 'locating', from מקמ √mqm 'locate', which derives from biblical Hebrew מקום [må‿qom] 'place', whose root is קומ √qwm 'stand'
** 2013, Илья Якубович, Новое в согдийской этимологии (in Russian), Litres, →ISBN, page 104:Реконструированный корень √mā, разумеется, не являлся единственным выразителем значения ’расти’ в праиндоевропейском.Rekonstruirovannyj korenʹ √mā, razumejetsja, ne javljalsja jedinstvennym vyrazitelem značenija ’rasti’ v praindojevropejskom.The reconstructed root √mā, of course, was not the only expression of the meaning 'to grow' in Proto-Indo-European.
** 2021, Utz Maas, “Die Stärke einer Sprache […] ”, in I.C. del Toro, E. Hack-Cengizalp, editors, Literalität und Mehrsprachigkeit (in German), →ISBN, page 15:Gebildet zu einer Wurzel √fqh, zu der insbesondere auch ein Verb faqaha „verstehen, begreifen“ gehört.Formed from a root √fqh, which also includes a verb faqaha "to understand, comprehend".
* Alternative spelling of ✓ (“check mark”)
* An ad hoc symbol for the hypothetical Solar-system planet Vulcan

#### Usage notes

This is also called the "radical sign".

### References

* ↑ Harry Ezekiel Wedeck, Dictionary of astrology, vol. I, pag. XXII, Citadel Press, 1973.