The word 'wiffle' is a modern English creation, first attested in the mid-20th century, born from the imitation of a sound. It is an expressive, onomatopoeic term that directly evokes the light, fluttering, or erratic sound of something moving through air, such as a flag or a lightweight ball. This phonetic symbolism was leveraged to name the Wiffle Ball, a trademark for a perforated plastic ball designed to curve easily in the air, cementing the word's association with light, unpredictable aerial motion. Its journey is not from ancient roots but from the direct mapping of sound to meaning, demonstrating how language can create new terms based on sensory experience.

This is a simplex word. It is an onomatopoeic formation, imitating the sound of a light, whiffling movement of air or an object moving unsteadily through air.