The word 'wimp' emerged in American slang around the early 20th century. Its exact origin is obscure, but it is widely considered a playful, possibly onomatopoeic invention, perhaps meant to sound weak or insubstantial. One popular but unverified theory links it to the character "J. Wellington Wimpy" from the Popeye cartoons, who was a cowardly and perpetually hungry man. Regardless of its specific genesis, the term successfully captures a concept of physical or moral weakness through its short, seemingly feeble phonetic structure, and it solidified this meaning in common usage during the latter half of the 1900s.

This word is a simplex. It is a 20th-century coinage of uncertain origin, likely imitative or expressive in nature, not derived from classical roots.