'toddlerhood' originates from the English word 'toddler', which is derived from the verb 'toddle', meaning 'to walk unsteadily'. The suffix '-hood' denotes a state or condition.

'Toddler' evolved from the verb 'toddle', which was used in the 16th century to describe the unsteady walking of young children. The term 'toddlerhood' was later coined to describe the period of life when a child is a toddler.

Initially, 'toddle' referred to the act of walking unsteadily, but over time, it evolved to describe young children who walk in this manner, leading to the term 'toddlerhood' to describe this life stage.