The word 'toddle' first appeared in English in the late 16th century. Its origin is obscure but is widely considered to be of expressive, onomatopoeic origin, mimicking the short, tottering steps of a young child learning to walk. It is possibly related to the dialectal Norwegian word 'tudla', meaning 'to walk unsteadily', suggesting a shared expressive root in Germanic languages. The word's playful, reduplicative sound pattern effectively evokes the physical action it describes, and its meaning has remained remarkably stable and specific since its inception.

This is a simplex word of uncertain origin, likely imitative or expressive in nature. It functions as a whole unit to convey the concept of unsteady, short-paced walking.