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[uh-kliv-i-tee] /əˈklɪv ɪ ti/
noun, plural acclivities.
an upward slope, as of ground; an ascent (opposed to declivity).
Origin of acclivity
1605-15; < Latin acclīvitās, equivalent to acclīv(is) steep (ac- ac- + -clīvis, adj. derivative of clīvus slope) + -itās -ity
Related forms
acclivitous, acclivous
[uh-klahy-vuh s] /əˈklaɪ vəs/ (Show IPA),
unacclivitous, adjective
unacclivitously, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for acclivity
Historical Examples
  • The acclivity of these hills is such, that every tree appears full to the eye.

    A Tour in Ireland Arthur Young
  • There, upon an acclivity, a tin plate was found on the ground.

  • Against the face of the acclivity, there was not much danger of their being seen.

    The Boy Slaves Mayne Reid
  • They have been so, but now, climbing the acclivity, they have quieted their horses to a walk.

    The Death Shot Mayne Reid
  • Let the ascent to it be not by steps 16 but by an acclivity of raised earth.

    The Antiquities of the Jews Flavius Josephus
  • He swam to the side, crawled up the acclivity, and returned to his village.

    Curiosities of Superstition

    W. H. Davenport Adams
  • Toiled up an acclivity and when on the top stood still and looked around me.

    Wild Wales George Borrow
  • At last, she sank down on one of the rocky steps of the acclivity.

    The Great Stone Face Nathaniel Hawthorne
  • Straight and white it showed to the acclivity by the Roman ruin.

  • At last she sank down on one of the rocky steps of the acclivity.

    Twice Told Tales Nathaniel Hawthorne
British Dictionary definitions for acclivity


noun (pl) -ties
an upward slope, esp of the ground Compare declivity
Derived Forms
acclivitous, acclivous (əˈklaɪvəs) adjective
Word Origin
C17: from Latin acclīvitās, from acclīvis sloping up, steep
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
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Word Origin and History for acclivity

1610s, from Latin acclivitatem (nominative acclivitas) "an ascending direction, an upward steepness," from acclivis "mounting upwards, ascending," from ad- "up" (see ad-) + clivus "hill, a slope," from PIE *klei-wo-, suffixed form of *klei- "to lean" (see lean (v.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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