'wobbly' originates from the word 'wobble,' which is derived from the Middle Low German word 'wabbeln,' meaning 'to shake or tremble.'

'wabbeln' transformed into the English word 'wobble,' and eventually became the modern English word 'wobbly.'

Initially, it meant 'to shake or tremble,' but over time it evolved into its current meaning of 'unsteady or unstable.'