Word Study
acclivity
CIDE DICTIONARY
acclivity, n. [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. [1913 Webster]
OXFORD DICTIONARY
acclivity, n. (pl. -ies) an upward slope.
Derivative
acclivitous adj.
Etymology
L acclivitas f. acclivis (as AC-, clivis f. clivus slope)
ROGET THESAURUS
acclivity
Obliquity
N obliquity, inclination, slope, slant, crookedness, slopeness, leaning, bevel, tilt, bias, list, twist, swag, cant, lurch, distortion, bend, tower of Pisa, acclivity, rise, ascent, gradient, khudd, rising ground, hill, bank, declivity, downhill, dip, fall, devexity, gentle slope, rapid slope, easy ascent, easy descent, shelving beach, talus, monagne Russe, facilis descensus averni.Ascent
N ascent, ascension, rising, acclivity, hill, flight of steps, flight of stairs, ladder rocket, lark, sky rocket, sky lark, Alpine Club, rising, scandent, buoyant, supernatant, superfluitant, excelsior, uphill.For further exploring for "acclivity" in Webster Dictionary Online