The Collaborative International Dictionary of English v.0.48:

Send \Send\, n. (Naut.)
   The impulse of a wave by which a vessel is carried bodily.
   [Written also scend.] --W. C. Russell. "The send of the
   sea". --Longfellow.
   [1913 Webster]

WordNet (r) 3.0 (2006):

scend
    v 1: rise or heave upward under the influence of a natural force
         such as a wave; "the boats surged" [syn: scend, surge]

Moby Thesaurus II by Grady Ward, 1.0:

68 Moby Thesaurus words for "scend":
   be poised, billow, bore, break, breakers, chop, choppiness,
   chopping sea, comb, comber, crash, dash, dirty water, eagre,
   ebb and flow, flounder, gravity wave, ground swell, heave,
   heavy sea, heavy swell, hobbyhorse, lift, lop, lurch,
   make heavy weather, peak, pitch, pitch and toss, plunge, popple,
   pound, rear, reel, riffle, ripple, rise, rise and fall, rock, roll,
   roller, rough water, sea, send, smash, surf, surge, sway, swell,
   swing, tidal bore, tidal wave, tide wave, toss, toss and tumble,
   trough, tsunami, tumble, undulate, undulation, wallow, water wave,
   wave, wavelet, welter, white horses, whitecaps, yaw