The Collaborative International Dictionary of English v.0.48:

Ramp \Ramp\ (r[a^]mp), v. i. [imp. & p. p. Ramped (r[a^]mt;
   215); p. pr. & vb. n. Ramping.] [F. ramper to creep, OF.,
   to climb; of German origin; cf. G. raffen to snatch, LG. & D.
   rapen. See Rap to snatch, and cf. Romp.]
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   1. To spring; to leap; to bound; to rear; to prance; to
      become rampant; hence, to frolic; to romp.
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   2. To move by leaps, or as by leaps; hence, to move swiftly
      or with violence.
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            Their bridles they would champ,
            And trampling the fine element would fiercely ramp.
                                                  --Spenser.
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   3. To climb, as a plant; to creep up.
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            With claspers and tendrils, they [plants] catch
            hold, . . . and so ramping upon trees, they mount up
            to a great height.                    --Ray.
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