falować

Etymology
From.

Verb

 * 1)  to undulate, to wave
 * 2)  to knit meshes by bending them into loops using a machine
 * 3)  to undulate, to wave
 * 4)  to undulate, to wave
 * 5)  to undergo regular changes
 * 1)  to undulate, to wave
 * 2)  to undergo regular changes