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verb-intransitive. To heave upward on a wave or swell.

n. The rising movement of a ship on a wave or swell.

n. The rising motion of water as a wave passes; a surge

n. Upward angular displacement of the hull of a vessel measured in a longitudinal vertical plane at right angles with and on either side of a horizontal transverse axis passing through the center of flotation.

v. rise or heave upward under the influence of a natural force such as a wave

"The hens could fly high, out of range of the arrows, but would have to de - scend to within range to snatch the flag."

scended    scending    scends   

arise    come up    go up    rise    uprise    lift    move up