UNDULATE

Definition

1. adjective having a wavy margin and rippled surface.
2. verb stir up (water) so as to form ripples. — synonyms: ripple, ruffle, riffle, cockle
3. verb occur in soft rounded shapes. — synonyms: roll
4. verb move in a wavy pattern or with a rising and falling motion. — synonyms: roll, flap, wave
5. verb increase and decrease in volume or pitch, as if in waves.