underroot

underroot adjective: beneath the roots.

Adjective

underroot (not comparable)

Beneath the roots.
- Capillary saturated soil layers in relation to water expenditure are to be divided into three parts: 1) the part above the roots, 2) sucking part-active root part and 3) underroot part.1936, Proceedings, page 62
- In the ores of Fayzabad region (Central Tajikistan) the crystals of fluorite are only of octohedrial habitus types and it proves that the crystals here represent underroot parts ( according to the scheme of changing the forms of crystals).1996, Communicated Abstracts, page 569

underroot (comparative more underroot, superlative most underroot)

Beneath the roots.
- It is a rain forest and mucky underroot place where hard land is scarce.1998, Hannah Rachel Bell, Men's Business, Women's Business
- His own bloodveins stretched for the riverroots which...; all held silent communion; all were part of; all tapped the latent elements of seed and death undertree, underroot.2009, Gwendolyn MacEwen, Julian the Magician, page 70

underroot (plural underroots)

The underground root portion of a plant, or a single underground root.
- To my knowledge, this is the only tree, having a Manregian underroot, that has shown blackline.1952, Northern Nut Grower's Association, Annual Report of the Northern Nut Growers Association, page 37
- During December limbs and growth in the crown were pruned and an area around the base of the trunk was mulched to help keep the direct underroots frost-free.1972, Roads and Streets - Volume 115, page 56
(figuratively) An underlying root or basis
- The word Bapt cannot here, any more than elsewhere, explain itself, There is nothing back of it. It has no underroot.1858, Samuel Fuller, Loutron: Or, Water Baptism, page 19
- It has deep underroots.1993, American Flint Glass Workers' Union, Proceedings of the Ninety-Ninth International Convention, page 60

underroot (plural underroots)

(India) Square root.
- The underroot of the product of two regression coefficients gives us the coefficient of correlation .1981, Paruchuri R. Krishnaiah, A Hand Book of Statistics - Volume 1, page 298
- To take the underroot of (2c-n)/n, the negative (2c-n)/n is multiplied with the minus sign to make it positive since one cannot take the underroot of minus item.2008, Tulsian P.C. & Jhunjhunwala Bharat, Business Statistics, pages 7-32

The flower stalk has good substance, foliage very similar to P. superbus, rosette has side shoots coming from underroots.1992, Dale T. Lindgren, Betty Davenport, List and Description of Named Cultivars in the Genus Penstemon, page 36:
The old man appears in this scene very much like the wise Wotan of Norse myth, who won his wisdom from Mimir's well in the tangled underroots of the World Tree Yggdrasil .1997, Evans Lansing Smith, Figuring Poesis: A Mythical Geometry of Postmodernism, page 108:
But did they check the underroots?” Dash asked, absently looping an arm around Frost and letting her settle in his lap, though his attention was still on the platform.2012, Martha Wells, The Siren Depths:

From Middle English underwroten, equivalent to under- + root.

What does underroot mean?: Underroot means beneath the roots.
How do you use underroot in a sentence?: The flower stalk has good substance, foliage very similar to P. superbus, rosette has side shoots coming from underroots.
What part of speech is underroot?: Underroot can be an adjective, an adverb or a noun.

Adapted from Wiktionary: underroot (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-underroot.wav.

Cite this entry: “underroot.” Word.ws, https://word.ws/underroot. Based on Wiktionary, CC BY-SA 4.0.