'unsteadily-formed' originates from the prefix 'un-' meaning 'not' and the word 'steady,' which comes from Old English 'stede,' meaning 'place' or 'position.'

'unsteady' evolved from the Old English 'unstædig,' which meant 'not firm or fixed,' and eventually became the modern English word 'unsteady.'

Initially, it meant 'not fixed in place,' but over time it evolved into its current meaning of 'lacking stability or solidity.'