the.com/waveform

means The graph-like shape of a signal — like a sound wave — as it changes over time, showing how its amplitude rises and falls.

from A straightforward 19th/20th-century compound of 'wave' (from Old English 'wafian'-related waters-and-motion imagery, long used in physics for oscillating disturbances) plus 'form,' the shape something takes. As electrical and acoustic engineering matured and oscilloscopes let people literally see sound and signal patterns traced on a screen, 'waveform' became the natural term for that visible shape — no myth required, just physics meeting a very literal naming instinct.