marl

1
[mahrl]
noun
  1. Geology. a friable earthy deposit consisting of clay and calcium carbonate, used especially as a fertilizer for soils deficient in lime.
  2. Archaic. earth.
verb (used with object)
  1. to fertilize with marl.

Origin of marl

1
1325–75; Middle English marle < Middle Dutch < Old French < Medieval Latin margila, diminutive of Latin marga, said to be < Gaulish
Related formsmar·la·cious [mahr-ley-shuh s] /mɑrˈleɪ ʃəs/, marl·y, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for marly

marl

1
noun
  1. a fine-grained sedimentary rock consisting of clay minerals, calcite or aragonite, and silt: used as a fertilizer
verb
  1. (tr) to fertilize (land) with marl
Derived Formsmarlacious (mɑːˈleɪʃəs) or marly, adjective

Word Origin for marl

C14: via Old French, from Late Latin margila, diminutive of Latin marga

marl

2
verb
  1. nautical to seize (a rope) with marline, using a hitch at each turn

Word Origin for marl

C15 marlyn to bind; related to Dutch marlen to tie, Old English mārels cable
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for marly

marl

n.

"clayey soil used for fertilizer," late 14c., from Old French marle (Modern French marne), from Late Latin marglia, diminutive of Latin marga "marl," which is said by Pliny to be a Gaulish word, but modern Celtic cognates are considered to be borrowed from English or French. As a verb by late 14c. Medieval Latin margila is the source of Dutch mergel, German Mergel.

Online Etymology Dictionary, © 2010 Douglas Harper

marly in Science

marl

[märl]
  1. A crumbly mixture of clays, calcium and magnesium carbonates, and remnants of shells that forms in both freshwater and marine environments.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.