• synonyms


noun, plural de·cliv·i·ties.
  1. a downward slope, as of ground (opposed to acclivity).
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Origin of declivity

1605–15; < L of dēclīvitās a slope, hill, equivalent to dēclīvi(s) sloping downward (dē- de- + clīv(us) slope, hill + -is adj. suffix) + -tās -ty2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

declination, descent, inclination

Examples from the Web for declivities

Historical Examples

  • It grows upon the declivities of hills and in the savannahs.

    The History of Louisiana

    Le Page Du Pratz

  • What hand had guided him down the declivities of the Palatine?

    "Unto Caesar"

    Baroness Emmuska Orczy

  • Nevers is a pleasant town, and very agreeably situated on the declivities of an hill, at the bottom of which flows the Loire.

  • They observed the direction of the paths, their branches and declivities.

  • All the camps on the declivities about Andersonville were drained into this stream.


    Augustus C. Hamlin

British Dictionary definitions for declivities


noun plural -ties
  1. a downward slope, esp of the groundCompare acclivity
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Derived Formsdeclivitous, adjective

Word Origin

C17: from Latin dēclīvitās, from de- + clīvus a slope, hill
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 declivities



1610s, from French déclivité, from Latin declivitatem (nominative declivitas) "a slope, declivity," from declivis "a sloping downward," from de- "down" + clivus "a slope," from PIE *klei-wo-, suffixed form of *klei "to lean" (see lean (v.)).

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Online Etymology Dictionary, © 2010 Douglas Harper