from The Century Dictionary and Cyclopedia
- n. In physical geography, a low ridge of sand formed by waves or currents of water.
Sorry, no etymologies found.
A big sand-wave struck her, she wheeled in her tracks and raced straight for a pier, down the stream.
So we climbed to the top of the sand-wave, where Allison and Jeff switched on the flashlights and Grim stood bathed in light with the white flag waving slowly as high over his head as he could hold it.
He started on a run, racing in and out among the sage-bushes a matter of three hundred yards, and disappeared over a sand-wave; the others struggled after him, caught him up, and found him waiting.
And she unpinned her hat and waved it, standing amongst the thickly-growing poppies and chamomile on the high crest of the sand-wave, while her shadow -- a squat, blue dwarf with arms out of all proportion -- flourished and gesticulated at her feet.