Hypertext Webster Gateway: "acclivities"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Acclivity \Ac*cliv"i*ty\, n.; pl. {Acclivities}. [L. acclivitas,
fr. acclivis, acclivus, ascending; ad + clivus a hill, slope,
fr. root kli to lean. See {Lean}.]
A slope or inclination of the earth, as the side of a hill,
considered as ascending, in opposition to declivity, or
descending; an upward slope; ascent.
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